I used something called 'Clearasil' wipes to clean some sticky marks off some of my klickies from when James had stuck ribbon on them with double sided tape, and they worked really well.
The Clearasil wipes are what my teenagers use to clean their skin to stop them getting spots! I think they may contain surgical spirit. I should think there will be an equivalent in other countries.
Having said that, I got a 5302 house that someone had pulled the wallpaper off and stuck it on the floor and I tried just about everything I could think off and still have some sticky bits left
Elaine