How do you track your maintenance history?
I've just been keeping all the work orders and receipts in a file folder. But I find it frustrating to have to look through it all to find the last time I had my air filter changed, or my new brakes installed, or see what something cost, see if a warrantied part has expired, etc.
Ideally I'd like an online logbook, so I could reference it from home or work while I'm talking to the service center on the phone. I'd be a lot more convenient than lugging a bulging file folder around.
So far the few online logbooks I've tried are lacking. Has anyone found an online service they like? Or something else: A notebook in the glove box? A spreadsheet?
Or do you just bring it in for oil changes and go by what the dealer tells you?