This is one of those tips…
Personally, I remove 99% of my hardware, including hinges. I am not saying a painted hinge is a bad thing, but when you are doing a super modern piece it just doesn't look clean, or modern, or right…so yeah, I guess a painted hinge can be a bad thing. I said it. Now I feel bad, but a little better
The unfortunate thing is that when you remove old hinges, it can be tricky to get doors lined up JUST RIGHT when reinstalling, so I assume that is my most people paint hinges. It's totally easier. I get it and I actually now charge a LITTLE more when refinishing a piece with doors because I KNOW I will be spending an extra hour removing and reinstalling those babies. I hate it.
A problem I also find with these old hinges is that often times the holes are stripped or too large to use a flat screw that will sink into the hinge holes and actually allow the door to close nicely. When this happens, there is a pretty simple solution.
I have a tupperware container full of different sized that I use for different reason as well as dowel rods on hand, for different "fix" it reasons. I find my dowels at Lowes, Homey D, Joanns, Hobby Wobby…they are all over
I found the right size dowel, which was probably the smallest in diameter that they make and cut to size. I guessed on length but knew I didn't want it sticking out at all.
With a little dab of wood glue, stuff that baby in and let dry for a bit.
Now your screws with "catch" and pull the hinge in tight!
I have also used a toothpick many times as well. Sometimes you just need the hole filled in just a tiny bit to make the screw catch, like on the other door side.
I like to use the flatter toothpicks, not the round ones. But don't use a flat toothpick to pick your teeth, that's just dumb.
And don't pick your teeth in public, that's just gross.