We are going to try having DS keep his glasses case on his desk. When he is doing seatwork or reading he can put them on. If he is going outside, he'll take them off and put them in the case. When it's time to come home, he'll put the case in his backpack. I am doubtful about whether a 5 year old can remember all that, but I'm going to give it a try.

Oh, and I have to get DD to remember to take out and put in her retainer for eating and sports. It's more expensive than the reading glasses!