We all make a few big purchases in our lifetime that we end up regretting. Some people do this as teenagers, which makes sense, because at that age you're new to budgeting and knowing the price of things. When you get that first paycheck from your retail job, it's hard not to blow it all at once! The people of r/AskReddit shared their stories of the “absolute worst purchase” they've ever made, and there's a wide variety of items that people regret getting. For some people, buying a new vehicle…