For iced tea, or soda, I usually use a half-gallon insulated truck stop mug, and just fill it with ice first. Winter, I usually use a 32oz glass "beer stein" for the bevvies.
I like lots of ice. I have toyed with the idea of putting in some sort of non-fridge ice maker. The best ice is the bagged ice you can ask for at Sonic drive-ins...
Coffee? I have coffee cups, but I usually just use the styrofoam ones, since they require less thought pre-covfefe...
I used to have a bunch of very heavy beer mugs and a friend's wife was absolutely horrified that I used them for coffee... She was sure they would shatter...