During a boat trip, I stored my sunglasses at the bottom of a bag, without a case, along with everything else. A spot of glue ended up on one of the lenses. I tried every gentle product I could think of : dish soap, alcohol wipes, but nothing worked. It was impossible to remove.
Yesterday, I forgot this pair of sunglasses in my car under the sun. They became very hot, and I noticed that the glue had started to bead. When I ran my finger over it, the glue came off easily.
These are the kinds of problems I like the most: I once squirted some ketchup on my new shoes while we were out drinking. Ignored it, the next day when it was dry I could pull it off without even a discoloration. If I had used a towel to wipe it off, the shoes would have been ruined.
Less work, more results, that’s what I like