We have all done it. We saw an item and it was on sale. We do not need it at the moment but we tell ourselves we could keep it for a future use. A year later, we still have not found a use for it. We realized the item is just occupying space that we could use for more important things. We either give it away or toss it.
I am glad I was able to give away things that I do not need but for some, a habit of buying things they do not need can lead to a more serious problem; hoarding.
Keep in mind, we do not have to buy things just because it is on sale. I know the promise of big savings if you buy their products is very tempting. Once you bought it, you spent, not saved. The only real saving is when the money stayed in your wallet.
Always do a balance check between wants and needs. It will help you eliminate wasteful spending.