Cleaning interior glass

¡También funciona muy bien en canoas de vidrio españolas!

Since this thread was resurrected.

Been using the Invisible Glass Reach n Clean tool w/ good results. No more contortions for this old guy. Faster too.

I always get residue from the inspection and emission stickers in the lower windshield corner. APC took it out followed by Invisible Glass. Didn't use the little football looking pad from the kit. Not following IG instructions, used the large IG MF pad to apply cleaner then laid a clean MF towel over that to wipe dry. Works well in reaching the bottoms of the steep raked glass of windshield and back glass. Just a MF towel on side glass. 

I'll still use the APC on new to me vehicles. 

For $15 or so the tool gets a pass from me. Or, any other similar reach tool. A plastic spatula should work as well. 

My latest thing for exterior glass water spots is CG V38 polish applied w/ a damp MF pad, let glaze and MF wipe followed by sealing w/ TW Seal n Shine. Been working well.