I'm looking for a program which will allow me to 'hit a button' when I start working on a project, hit it when I finish, calculate how much I'm owed based on an hourly rate, and anything else which might be of some use. Are there any good free or open source programs which do this? Thanks for any suggestions.
GnoTime Tracking Tool ( though, it's linux based application ) - very good reports and time management tool !
Try this: http://autohotkey.com A very useful program that helps you make programs to automate various tasks. That wouldn't be hard at all to make.