Gary, we got in an accident Christmas day with our Toyota.
We had a 1.89$ roll of duct tape and a single hefty bag to work with; the patch over the rear window lasted the entire trip to Banff, including -30C temps and the 60-75mph drive to Banff and back to Seattle with only 1 spot retaped the entire time.
There seemed to be a couple keys: the surface doesnt have to be warm when you tape, but should be as warm as possible and has to be absolutely dirt free. Clean the surface as best you can, warm up the tape as best you can, warm the surface as best you can (inside a garage for a few hours, or a shake-n-warm applied as you tape, or an XGK/canister stove held at a safe distance).
That said, Nashua brand model #357 duct tape is well worth the money spent if you can find it. Stock up.