Another product available for glue removal, and it is really good, is simply called Sticky Stuff remover. Blog Pic
Amazon.com link here
. Its also available from Lakeland and Amazon in the UK, amongst others.
It has a nice citrus type smell, rather than a chemical one,and I haven't yet found any sort of sticky it doesn't remove. It comes off easily too- will usually just wipe off after leaving for a minute or two. A drop on cotton wool wipes any sticky residue off scissor and knife blades too.