We've been making due with fans so far this summer, and we've found that little things like drinking lots of icewater make a big difference. Not everyone can get by without AC, but if you can, it actually feels good to live in summer mode with all the windows open.
Some of the tips from Supernaturale made us smile like: "Shower in your underwear" and "Freeze your pillowcases." Hey, if it gets hot enough we might try anything.
Image from allposters.com.