1. $7 inner tube rental.
You would load up the cooler and float the Styx river in south Alabama (seven bucks to rent an inner tube, and an extra seven to rent a tube to put the ice chest in), or the Little Cahaba near Birmingham. White water rafting on Chatahootchee River and kayaking on the Coosa River were also a guaranteed good time, as were heading to Smith Lake near Cullman and Lake Lurleen in Tuscaloosa.