Free software to keep track of virtually everything for contracting jobs

[Spangles]

I've been using openerp for over a year now and it's the best free system out there.
I'm running it on my own intranet server. Not hard to do but requires daily backup (usb pen drive) just in case a bug brings everything to a standstill.
Very easy to learn and find your way around.

https://demo1.openerp.com/#menu_id=124&action=116