I came across a saying "Buy nice or buy twice" and that resonated with me. Another variation I have seen is "Buy once, cry once".
Getting cheap trash that will fall apart in a few months that you will have to eventually re-buy isn't going to help, but that doesn't mean you buy gold-plated or diamond-encrusted items. Spending a little bit more for most items usually gets you something that will work better, last longer, or both. Good quality stuff is usually backed with good warranties too.
I spend my time researching to see what product is the best for me, look for deals online, or even buy used if I have to.