You can literally buy Label Remover. I use it all day when I get kit back and other people have stuck their stickers over my stuff. It smells like orange too. It's probably the ame as the Citrus Clean stuff you can get for degreasing.
I'm surprised more people haven't mentioned white spirit as it's probably the cheapest and works brilliantly.
Yeah it works for all kinds of sticky gunge left behind by stickers of all kind. The only trouble is you have to wash the surface afterwards to get rid of the stink.![]()