I'm about to get an Aerobird and I've read everywhere that a timer is a must, to make sure you don't run out of power in a sticky position. I have a stop watch but this doesn't beep after a certain time. If you have any suggestions of what I can use as a portable alrm to go off after a set time please give them to me. Is there something cheap I can get (eg. from Kmart)?
Thanks.
Alex