Craig, Eucalyptus oil, distilled from eucalyptus leaves, is commercially available in supermarkets and well accepted here as a solvent for adhesives, and general cleaning. I`m sure it would be useless on epoxy, but for household things, like adhesive labels, it readily removes both label and remaining adhesive which comes off by rubbing with oil on a small area of a cloth. Checking, I saw online it is regarded as an "industrial solvent",whatever that means. Most households here would have a bottle. It may not work on everything, but would be my first choice on adhesive residues and does not harm the surface. Smells nice too.