Just the other day I thought of something that has created an almost instant jolt and ongoing amount of motivation for me.
I had been trying for a few months to keep up with maintaining all the usual GTD behaviors. I was off to a great start but in the last few weeks I felt that my motivation to complete things was not where I felt it should be.
Then I got to thinking: I realized that Mr. Allen had been using the GTD principles for many years, even before PDAs came into being. I started GTD using a Palm because I just happen to have one. I wondered if there was something different about paper versus PDA that may be causing me to lack motivation?
Then it hit me: On my Palm, I had it set to not show completed items (I also had a similar setting for Outlook, which is what I sync with). Whenever I would complete something, it would disappear from view, leaving only the stuff left to do. Paper lists don't work that way, so I decided to change my Palm settings.
Once I had turned on the "show completed items" in my palm and on Outlook, I noticed an immediate boost in my productivity. I was a TON more motivated to look at my lists, knowing that I would not only see what remained, but also be able to relive the pride of completing some of my actions. Before turning on that feature, I was struggling to even look at my lists because all I saw was what I had left. Now, my completed next actions are like little trophies of accomplishment -- I am actually excited to go after them and see them checked off!
Just wanted to pass on this tip in case any of you could benefit from it.