Comment Mojo Helpdesk (Score 2, Informative) 236
I read through a lot of the comments and saw so many mentions of enterprise level ticket tracking and development management. You actually asked for a ticket tracking for IT sidework. I use Mojo Helpdesk. They have a free plan, 30 day free trial for their pay plans and gives you a central location to track open issues and receive reedback from clients.
Hope this helps.
Hope this helps.