I have to change my computer login password at work quite frequently, and it must contain a combination of letters and numbers and upper and lower case. The other day, I thought why don't I change it to my goal weight along with the words "for me" so that I have to enter it every day.
So, maybe this could work for some of you... change your computer passwords to a motivational phrase or one of your goals. I.e. - Maybe next I'll do Halfin2010 since I want to run a half marathon this year. A daily reminder of what you are striving for can be very helpful.