This is the kindest and most satisfying approach. It’s like being a tiny animal rescuer, minus the cape.
Grab a glass and a piece of stiff paper (a postcard works great). Trap the spider under the glass, slide the paper underneath, and carry it outside. It’s that easy.
Do this near a window or door so the spider doesn’t just crawl right back in. Then, give them a little pep talk: “Go forth, little buddy. Eat mosquitoes elsewhere.” See? No drama.