How to Stop Spending Money: Core Principles of Underconsumption

There are many practical ways to spend smarter and save money—use the 50-30-20 rule, automate transfers to savings, open a tax-free savings account (TFSA) and make the most of loyalty rewards. A growing movement among eco-conscious young people is pushing another approach that’s gained traction on TikTok: underconsumption core. At its heart, the idea is simple: buy only what you need, avoid unnecessary purchases and use items until they are genuinely worn out or no longer useful. This reduces waste, cuts spending and encourages more intentional habits.

Young adults—particularly Gen Z and younger millennials—are embracing this trend for several reasons. They’re pushing back against influencer-driven “must-buy” culture, which often promotes constant consumption. Underconsumption core also aligns with environmental priorities and offers clear financial benefits. The movement reframes everyday spending as a conscious choice rather than an automatic response to advertising and social pressure.

Whether you’re tightening your budget or simply want to be a more deliberate shopper, underconsumption core is a practical framework for building a sustainable, conscious spending plan that supports both the planet and your finances.

How did overconsumption become so pervasive?

To put the scale in perspective, the fashion industry produces an enormous volume of clothing each year, and a very large portion of those garments ends up in landfills. For example, globally the industry manufactures tens of billions of items annually, and millions of tonnes of textiles are discarded. In Canada alone, the equivalent of about a billion pounds of clothing and home goods are thrown away each year. These figures help explain why many people are rethinking how and what they buy.

Overconsumption has roots in many factors: mass media, targeted advertising and the rise of social platforms that constantly present the latest trends. That steady stream of curated content taps into the brain’s reward system—dopamine rewards when we acquire new things—so it’s easy to fall into repeated purchases. While higher consumption can boost short-term economic activity, its environmental and psychological costs are prompting many to change habits and choose more conscious spending.

Gen Z spending habits and the influence of social media

Gen Z holds substantial spending power and shops differently than older generations. A large share of young shoppers prefer mobile buying and are influenced by what they see on social platforms, where users can spend several hours a day browsing content. This exposure both drives trends and creates pressure to buy. It’s encouraging, then, that many young people are now promoting underconsumption core and similar movements that champion mindful purchasing and reduced waste.

In Canada, households spend an estimated $2,300 a year on clothing and accessories—around $190 a month—and that adds up when multiplied across multiple household members. Reducing unnecessary purchases in categories like apparel can free up money for debt repayment, savings, homeownership and retirement planning.

What is “underconsumption core”?

Underconsumption core is the social-media-driven pushback against relentless product promotion. On platforms like TikTok, posts tagged #underconsumptioncore showcase people living with far fewer items—limiting beauty products, using durable drinkware instead of buying single-use items, and finishing products completely before replacing them. Some creators go to lengths such as cutting open tubes to scrape out the remaining contents to avoid waste.

The central message is clear: we need far less than we are led to believe. Turning that idea into practice can free up money for priorities that matter—paying down debt, boosting emergency savings, or investing in long-term goals.

How much can conscious spending save you?

Savings from a mindful, minimalist approach depend on how deeply you change habits. People who’ve moved away from fast fashion and impulse purchases often report significant annual savings. For example, one author described spending over $1,000 at a fast-fashion retailer in a year at her peak, visiting stores weekly. After shifting to buying far less, and reselling higher-quality items when no longer wanted, she expects to have saved thousands over time. Selling used items can also recoup some spending that would otherwise be lost.

6 practical steps to build a conscious spending plan

Adopting new spending habits starts with small, consistent changes. These six tactics make it easier to become a more intentional consumer and save money at the same time.

1. Prioritize quality over quantity for clothing

Move away from fast fashion and choose durable, well-made pieces. A single high-quality item that lasts years will often cost less over time than repeatedly replacing cheaper alternatives. Quality items tend to retain resale value better, so when you do choose to part with them, you can recoup some of the cost. Track purchases, avoid impulse buys and give yourself time to decide before completing a purchase.

To identify lasting pieces, favor natural fibres like cotton and wool and limit synthetic blends. Well-made garments tend to hold shape and appearance through repeated wear and laundering.

2. Support local and small businesses

Shopping locally reduces transportation-related environmental impact and often supports vendors that prioritize ethical and sustainable practices. Buying from nearby shops helps local economies, creates jobs and strengthens communities.

3. Embrace secondhand shopping

Thrift stores, consignment shops and online marketplaces can yield high-quality finds at lower prices. Many people build large portions of their wardrobes with secondhand items, which keeps goods in use longer and reduces landfill waste. Buying used also makes it easier to justify occasional splurges on higher-ticket new items.

4. Clean up your digital feed

Limit exposure to constant advertising by curating the accounts you follow. Unfollow creators who frequently promote product hauls or pressure you to buy new items. Instead, follow accounts that promote minimalist living, sustainable brands and mindful spending to reinforce better habits.

5. Become an informed buyer

Research the environmental and social impacts of brands and products. Choose companies that prioritize sustainability, ethical labour and transparency. When you buy with awareness, your dollars reward businesses that align with responsible practices.

6. Gamify your spending to break impulse habits

Make mindful spending more engaging by turning it into a game. Tools like wishlists, low-buy challenges and tracking progress toward savings goals can provide the same small dopamine rewards that shopping does—without the financial cost. Creating a wishlist and waiting before purchasing creates helpful “cooling-off” periods that often stop impulse buys.

Further reading on spending and budgeting

• How to create a monthly budget: a step-by-step guide
• A step-by-step guide to keeping your finances on track
• Free budget templates and tools to manage monthly expenses
• Top financial apps to help Canadians track spending and save