I'm turning 40 on Aug 2 and I'm trying to come up with ideas for how to celebrate. I'll do something with my wife and three kids of course but I'm wondering if any of you have some additional ideas. One of my coworkers ran 40 miles on his 40th, another went skydiving for the first time. These are both possibilities. Any other thoughts? The day after my birthday I'm golfing 36 holes with some buddies. Thanks in advance.