Git

I have been tinkering with a grails app for fun and was just going to run it on my local box. I decided to show it to a mate and had to cart it into work for a show and tell. It was suggested that I upload the code to GitHub, an online code repo. At first I thought this would be yet another time consuming exercise but it was really simple. To get going all I had to do was create an account, download git (there is an easy OS X installer) and that was pretty much it.
I didn't bother reading the full instructions but it was all really intuitive. Safe to say its all now online and very happy. If you got collaborative code check out GitHub, its awesome. Also if you want a quick and dirty (that's figurative) screencast check Jeff Brown's also excellent screencast.

Finally if you want to have a play on my grails app, feel free to check it out.

Btw the grails app is a competition registration app. Basically its to allow people to sign up to an online competition to win stuff. There's no other activity except registering to win. It has been a good exercise and I was inspired to develop this after listening to those crazy dudes at Grails Podcast who are running this type of competition. I choose to develop in Grails over Java as I want to push my development in that area. (I considered Django but I really like the cross compatibility between Grails and Java [no flame wars I know Groovy is Java]. Besides it would seem wrong to develop a Python web app for the Grails Podcast!).
The app is open source so can be played with by anyone and I welcome any thoughts.