If you're a little sore from the pickup game on Sunday like us, you'll know why these guys are essential. The Dr. Cool & Dr. Hot Bags ($16 each) are IV bags filled with techno-chemicals that, when frozen or heated, help ease your pain. Just remember to place the bags on your sore spot, and not hook these up to a real IV setup. Yeah, yeah, we already know you have "ice water pumping through your veins" on the court. Ass.