How do you buy less clothes? Having less clothes just makes the stuff you have wear out faster. All of my clothes have worn out in ways you can't repair. Putting a patch over a hole looks worse than having a hole.
I just can't bring myself to throw out clothes with holes in them and wear them on the weekends because I don't want them to go to waste.
I patch my jeans and my gloves. It might not look very good, but it increases their life by at least 50%. I've also replaced zippers on jackets because they wore out.
When it comes to pants I find the pockets always rip first which is really annoying. I haven't tried to fix them yet but I have been keeping them for when I work out how to put new pockets on.
Better yet, many custom outfits can be specd and ordered online for a modest fee if you are like many who don't seem to fit americian vanity, nor asian sizing.