After you soak and the paper comes off and there's still adhesive, use GooGone. You can pick it up at Home Depot, Walgrens, CVS, etc. With a hurricane bearing down on us here in Florida, I once mistakenly thought that putting duct tape on the windows was a good thing to do. I forgot to remove it from a couple of upstairs windows and they baked in the Fla. heat all summer. No way I could get the adhesive off no matter what I used. GooGone took it right off with a minimum of elbow grease. Works good for bug residue on the family chariot too.
"If you don't try it this year, you'll just be another year older when you do" - Warren Miller
WARNING: Drinking may cause memory loss, or worse, memory loss.