Orange cleaner, and there are a ton of them in the stores these days, are cleaning products that have orange oil, presumeably extracted from the rind, as an active ingredient. I don't know if it's more effective than traditional cleaners but it has been a "hot item" in retail for a couple of years now, starting with "As Seen on TV" infomercials. It has been an active ingredient in "Goo Gone" for years, and I know for a fact that Goo Gone is excellent for removing adhesive messes.
-Joanna (just the facts) Friday