How can I back up iPad

[macgrl]

If I have documents etc that I produce on it how can I back it up? I use time machine on my air I would be reluctant to produce things on it if I can't back up

 

[skillz1318]

Wirelessly posted (Mozilla/5.0 (iPad; CPU OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3)

Not sure if serious. Plug into PC or use iCloud backup.

 

[boomhower]

Wirelessly posted (Mozilla/5.0 (iPad; CPU OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3)

Not sure if serious. Plug into PC or use iCloud backup.

Obviously the easiest method. Dropbox and box.net are also some alternatives that are free.