Physicists have determined that the best way to subdue wall-bouncing photons is to let them loose until they need a nap. Apply the latest scientific findings to your kids' playtime with today’s deal: for $10, you get a $20 gift card to Jump Mania, located on the South Kansas Expressway. With more than 8,000 square feet of traversable play area, Jump Mania offers jumpable space for kids to transfer pent-up energy into bouncing physical capital. All-day open jump passes are $5 on weekdays, and $8 on weekends for all children over the age of 2; parents' admission is free. There's also a concession stand that sells food, beverages, and back-issues of National Geographic.