After scoring with the Paper Tiger™, I use a product called DIF™ that is diluted with hot water and applied with a sponge. It still takes time, but is a little quicker, in my opinion, than plain water.
Think of wallpaper removal as getting a half-ton of horse manure out of your basement: If you do it yourself, it is a time-consuming crappy job, but the only alternatives are hiring someone to do it for you or leaving it there.
