Heat = Dead Electronics

I believe that my gear dislikes the summer. The washing machine overheats every time I use the dry cycle (and has been almost unusable since it was recently serviced); my cell phone’s battery mysteriously drains even when it is sitting on its charger; and now my G5 has developed a case of heat death notable for its red LED and screaming fans.
I can’t blame them. I don’t like the heat, either. Maybe my toys and tools need a treat. What’s the electronic equivalent of ice cream?