If you send out a survey or a request for information and add a personal sticky note message not only are people more apt to respond to your request but they also respond more promptly and more fully. It feels more like a request for a personal favour and the polite/helpfulness motivations kick in.
I can't guarantee it would work with me as I'm a legendary procrastinator but it would make me feel even more of a cad than I usually do about not getting something done.
Source: "Post-It® Note Persuasion: A Sticky Influence" by Randy Garner. Journal of Consumer Psychology, 2005. Click here and then click "Chicago GSB" to obtain a PDF of the full report.