I am a sofware devloper, and technical consultant employed by a technical consulting services, delivering billable projects to Enterprises ranging from 1,000 users to Fortune 10 companies.
I have a (non-billable) responsibility to ensure I am accounting for my time, so clients can be billed accordingly. This was always my "But I don't want to" task that I would procrastinate to the point of being reprimanded (by multiple people, including our CFO). The struggle came in when I would try to piece together my day and what I spent time on, with all the ad-hoc phone calls, disruptions, meetings and long nights. I left billable time on the table A LOT, which is no good for my employer, nor myself as my bonuses are based on productivity.
Timecamp has single-handedly solved this gap for me! I have installed the desktop widget, which I keep on screen at all times (near my clock so it's not distracting). I've quickly grown the habit to simply click on it and change the project I'm working on as I move from thing to thing. The weekly report by day has given me exactly the data I need, without having to work or stress over collecting/producing the billing information I need. What used to be the most stressful hour of my week (that's if I did it every week, it would compound if I waited) has turned into a smile on my face because I know that all I have to do is copy/paste the number of hours per project into our CRM/Accounting software for efficient and, best of all, accurate billing.
The initial results have been very surprising. I can see now with just a few weeks of useage, that I do a LOT more work than I was billing for, or getting credit for. With the same general day-to-day workload, I'm billing about 25-30% more than I was before.
It's made such a great difference that I have shared my findings and vehemently recommended timecamp to my entire company.