#1: Pant. Pant a lot.
#2: Find a cool place to lie down and rest.
#3: See #2. (This is Dakota's patented cool-down pose, "The Roadkill.")
#4: Try to stay in air-conditioned places. The dairy aisle is great.
#5: When your people are looking the other way...sneak out and run under the sprinkler! With any luck you'll get a bit muddy and they'll have to hose you off before bringing you back inside...heh heh heh!
Happy dog days, everyone!