I've read the posts about removing the adhesive left on tracker bars
from tape applications and was surprised that no one mentioned the
easiest first step to try.  It may be a bit counterintuitive, but try
applying more tape!

Specifically, before using any solvents, apply a tape with a strong,
relatively thick adhesive that is well bonded to the tape.  Gaffers
tape or good quality duct tape is usually a good choice.  Apply the
tape over the area where adhesive remains, then rub it with your finger
over the adhesive deposits.  When you lift the tape off it will usually
pull most or even all of the old adhesive with it.  Sometimes it may
be necessary to repeat this two or three times.

In my experience, if the adhesive to be removed is not old and hardened
it is unusual not to remove 100% of it with this method.  This works
well on metal and also on finished wood but be cautious with old,
fragile finishes as it could do damage.  It is likely to pull wood
fibers up on unfinished wood.

If a solvent type product is needed I've found "Goo Gone," a citrus
based product, to be very effective with little chance of damage to
finishes or plastics, etc.  There are a number of similar products
available.  Of course always test such a product on a hidden area
before using it on a visible area.

Wayne Johnson