To keep cool, drape a cool wet towel around your neck. Fruit juices juices and some carbonated drinks do not do the job. They are full of sugar. Water is the first choice. Dress lite, wearing lite-colored clothing.
Dark colors absorb the sun's rays.
Put some heavier household chores off until cooler days. If you have to put or keep pets outdoors, make sure they have plenty of shade for protection along with plenty of water. If your animal needs walking, do it during the coolest part of the day. A wet terrycloth towel or lite wet cloth around your animal's neck will help to keep it cooled down. Heat and humidity cause stress and problems for both man and beast.