I need to record my billable time when sitting at **any computer**. I use portable FireFox, ThunderBird, FileZilla and Gaim to achieve most of what I need moving between client's sites and using their computers. I found a time-recorder (http://www.cratchit.org/) but it only records totals - i.e. I spent 317 minutes working for Client A. I need recorded time and date info with an easy calendar / clock system to add / delete records.
Does anyone have any suggestions? A spreadsheet would work but Oo.org seems to be overkill for this.