I have a two rules that help me:

1. I never move between rooms of the house without carrying something back where it belongs. Every trip should make my house a tiny bit tidier.

2. When I pick up something random and it doesn’t obviously belong anywhere, I drop it into my “probably should give this away” bin.

When the “probably should give this away” bin fills, I’ll rescue onr or two things I changed my mind about, and give the rest away to empty the bin.