This semester I have done some experiments with testing. I decided to try quia, which is an online tool. Basically, I am giving all of my tests online and the computer grades them. This has worked out well because I have 150 students and it also prepares my students for the online testing that will take place in college.
After playing with it some I have learned my own system and it seems to work pretty well. I still go through each test and see which problems were incorrect, but it really saves a lot of time. I can grade a paper in less than a minute and I now have instant statistics on what my students are acquireing and what they need more repetitions on.
I think I am going to keep playing with it.