"There is another great adhesive remover, but I cant remember the name."
Also WD40 works well but I won't use it on wood products.
I think that it is "Goof Off".
That said, I would try in this order:
Acetone (NOT Nail Polish remover, too much other stuff in it)
Mineral Spirits or Paint Thinner
Lacquer Thinner (Although the stuff today has acetone in it)
MEK (This is really very nasty stuff.)
All of the above will evaporate away and the only stuff left would be some of the tape glue. Which can be removed with an additional application of the solvent.
I don't know how Goof Off or Goo Gone evaporates.
With a very sharp chisel, you should be able to remove the tape itself and then a solvent to remove any glue left. I've not tried it but a this point of scraping I would try Simple Green in solution. I don't know if it leaves a residue so be cautious. Simple Green is great on car windows. Which brings up another thought, try some Invisible Glass in the spray bottle.
On non porous surfaces olive oil or Wesson (cooking) Oil works wonders and can be removed with Windex or such.