Ooo yes I really do love ice cream and popsicles too. for ice cream I'm more for basic flavors like vanilla, chocolate or minty. For popsicles, I always go with lime, raspberry or strawberry :9
The best way to deal with it is most definitely hydrate with a lot of water/gatorade and not sleep in past 8am. Since the temperature rises up to 70 degrees and yeah.. even though its not considered hot.. it gets unbearing and I rather not have dehydrated nightmares in the morning rip Like I have to start drinking right after I wake up.
I also dress in thinner clothes so leggings or loose pants, a haori kimono with a tank top underneath. Its more comfort based clothes but it really helps keeping the heat leveled. cuz even a simple tshirt and pants and i'm already sweating.
The fam that I live with, we only use the ac if it gets insane hot to the point we won't reach down to 60-70 degrees for night temperature. Cuz that's a good time where we open up, have the fans on from our windows to get all the cool air in.
Though I live in a big room that's also an office for anthology and geology(my roommate's dad is a professor for anthology), its literally above the garage.. so all that heat absorbed in the garage goes up to my room.
during the day I just stay downstairs if the heat is unbearable. Plus my dog nags at me to stay down with her XD