Sleep Alone. Sleeping next to someone just accumulates more body heat. If you can, one of you can sleep in the guest room (if you have one). It’s only temporary. 🙂
Don’t have A/C? Stick a bowl of ice in front of your fan. It is amazing how it can cool down a room.
Make sure the blades on your ceiling fans run counter-clockwise, pulling hot air up and out.
Try to eat a salad or make a meal that doesn’t require the stove. Cooking will only heat up your home. Did you know the it is easy for our bodies to metabolize fruits and vegetables and the body produces more heat after you eat a steak or other heavy meal.
Get an old fashioned hot water bottle but fill it with ice water. Place it in your pillow or under your sheets.
Instead of having your box fan blow air on you, try facing it out the window. It will pull the hot air outside to keep the temperature lower in your room.