Toggl – Time tracking that works

Salam. I was browsing the web to see how freelance designers are charging for a website design project. So I found that some designers give package price and some applies hourly basis. So, I wonder how does a designer track their time, I mean how long do their work? Finally I’ve landed into a design blog that share list of free web applications for designer. One of them is Toggl which attracts me to try it.