There is a lot to love about Manic Time. It was easy to use and did way more than I was expecting from it. The reporting was informative. The editing was awesome. Tagging and managing the time tracked is robust, yet simple

It auto tracks your activity. You just have to go back and categorize it later. If you spend most of you day at a PC this is a great way to find out how you spend your time on what activity.

This software automatically tracks the time you spend on your computer. When you step away from your computer for a certain length of time (set by user), it will prompt you to tag that time. For example, if I'm getting coffee and have a 20 minute chat about the weekend, I tag it as personal. But if I have a chat about an upcoming or existing project, I tag it about that project. For the tasks you do on the computer, it can save screenshots every X seconds (again, set by user), so that you can have a reminder when you go to do your billing what each task was for. Now, I work with sensitive data, so those screenshots gave me pause... but you can also password protect the program, and/or turn off screen shots! Once you have your time all tagged, you can just generate a time sheet! You can also mark some tasks as billable and others as not, so that you can generate a time sheet of ONLY billable tasks. Oh, and you can export it as well, in case you use something else for invoicing. Also: They have a portable version in case you can't install locally (full functionality) License is per user, not per machine (they kick you out if you are on two machines at the same time, I think) All the data is stored locally, so you're not putting your whole life out there (there is a cloud version, though, if you prefer) OH! And they offer a killer student discount!