OK. Today I tried lemon pledge in the spray can on one wing, and PPC wing
cleaner on the other. The PPC was definitely better for taking off the bugs.
It may not provide any long lasting protection like Pledge might. I keep the
plane waxed pretty well with Race Glaze, and I'm a little concerned that the
strong surfactant in the PPC might also be taking off the wax.

Overall, the pledge in a spray can worked pretty well, but it seemed like
it might be a bit expensive in the long run. I saw an orange citrus Pledge
in the store today which came in a pump bottle and was cheaper, but wasn't
sure if it was the same stuff. Anyone have any luck with this?