ATMs are great until you get the person in front of you that has forgotten their PIN for the first 2 tries, takes out less than they wanted so have to try again and finally want to check their balance, order a new cheque book and print out a statement...

I've always saved loads of time by checking in via the automated British Airways executive club check in system. You get your tickets out of a machine at the airport and check in online the day before when you select what seat you want. You don't have to queue as well.
You get a lot of nasty looks from other people in the long queues though

- Trevor