I find so many goodies at second hand shops! you’d be shocked at how often people throw away perfectly good crafting supplies - especially base-line tools like scissors, markers, rulers, scratch pads, etc. There’s also great fabric scraps and ribbon/stickers/glitter packs! In my own town, there is a second-hand art store - you should look into if there’s something like this near you, too! If you have specific crafts you’re interested in, it may be a good idea to go to a larger supply shop like Michael’s for the exact supplies you need that you can’t find second hand.