Removing the Excess Adhesive from Self Stick Tiles

I would try a cloth (wrung out/not wet with it but damp) damped with isopropyl alcohol which you should be able to get from a chemist (pharmacy) or a hardware store, I think. I sell many types of adhesives here in Australia and so it is the best stuff generally as a solvent that isn't dangerous and doesn't leave residue. (Don't use methol!) As always, try in an inconspicuous area first. (The citrus stuff above will work well too but isopropyl leaves no residue. I like less steps!)

Try Goo Gone which is a citrus-based cleaner that I find to be highly effective in removing adhesives. (Make sure you mop afterward because it will make the floor slippery.)