When someone puts effort into making something, it adds value- if not monetary, at least in our minds. Homemade cookies make a bigger impression than store-bought. A handmade quilt feels warmer than a comforter from Target.
This can be a trap if it’s something you don’t really want or need. The macaroni necklace your child made in preschool is charming for a while, but there’s no need to keep it forever just because. The blue jean bowl was both clever and useful, but doesn’t get used any more, so… goodbye.
Take a good long look at the handmade treasures in your home. Eat the cookies. Edit the rest. Decide what is useful and/or beautiful, perhaps even ask the artist. Let some go.