If your concern is with the soap smell then don't use soap. I've scraped clean several buckets of joint compound with a putty knife, then warm water using a bristle brush. Good enough except for food related products. I also bought screw on lids to make sealing the buckets easier. Also, you made mention in your first entry that you don't have the stuff to do all your traps outside. Please do not boil, and especially do not wax your traps inside your abode. It's not only smelly, but potentially extremely dangerous!!

Frank.