I like to divide my spending into two broad categories: needs and wants. For example, I need food and shelter to survive, but I only want that really cute blahaj (even though it feels like I need it). Things that I want I can skip, things that I need I cannot. You have to be very honest with yourself for that to work well though.

Of course life is not fun if you’re only surviving, so it’s OK to treat yourself occasionally with things you want. Just make sure you’re saving enough before spending on “wants”.

It’s also often possible to break down “needs” further, since you may need some functionality (e.g. something to eat, something to hit nails with, etc.) but the specific item is not a need. I will prefer the cheapest option if I don’t have any other requirements. I tend to like things that’ll last though (they’re usually cheaper in the long run), so I’m willing to not cheap out if that’s a factor.

I am a very pragmatic and minimalist person though, so I don’t think this advice will work for everyone.