By not eating out, cooking all their own meals. Extreme couponing. Buying instant coffee that you make yourself instead of Starbucks. Not buying things they don

By not eating out, cooking all their own meals. Extreme couponing. Buying instant coffee that you make yourself instead of Starbucks. Not buying things they don't need. Several profitable side hustles. Using money from their main job to invest in SaaS products that they've built from scratch. Cycling instead of driving. Not having kids early.