#21: New Summer, New A/C
Some people are really into playing the long game when it comes to saving money. You know those 90-day return policies? You can try your best to use those policies to your advantage. One person goes so far as to buy a new portable air conditioner every summer. Then they return it within 90 days to get their money back.

This seems like a risky hack, especially if you live in a place with insanely long and hot summers. We personally think this person would be better off just investing in a high-quality A/C, but to each their own. If this hack makes them happy, more power to them.