Fourth of July
Fourth of July is on Friday this year, which makes it easy to not get up for work the next day. It seems every city has at least one fireworks display going on. Many cities also have concerts and family activities beforehand. Grab a blanket (or several, depends on how big your family is), pack that cooler (if coolers are permitted -- they're not allowed in every celebration), and head out to the local fireworks display.
Photo of Fourth of July fireworks (c) Heather Carr, licensed to About.com
