Time lapse bezel - How often do you use it?

[Green Sub]

I make a living doing computer service on a time and material bases only. No contracts, just billable time. Today was the inaugural for my YM to start doing work duty.

OMG - This is great. No longer do I have to jot down on a piece of paper when the billable call starts. Just rotate the bezel. I must have used it 4 times today.

So does your bezel just collect lint or do you use it often?