In r/BuyItForLife , someone asked , "What are some of your best quality of life purchases under $300?" People wrote in with their best buys (with many of them costing way less than $300), and I could just feel the joy radiating off their answers. Every once in a while, you just got to treat yourself. Here's what people said: 1. "A silly little rolling and folding laundry cart has made me ridiculously happy. I roll it to the dryer to empty the clothes, then to the bedroom to fold laundry. I then fold the cart to stash next to the dryer. It was under $30." 2. "Decent glass food containers ! If you pack a lunch, these are a game-changer. Compared to plastic, they wash much easier, the food heats more evenly, and it honestly just feels more natural to eat out of." 3. " Mason jars all the way! The lids come in two sizes, and the containers range from as big or as small as you need. Lids are interchangeable between brands because the patent ran out years ago.…