you make an agreement with yourself that once such and such is done you'll no longer have an excuse not to do (fill in the blank). Then you get it done and your like "CRAP! I no longer have an excuse!". For example, this of course is hypothetical, I say "Once my office/exercise room is clean and organized I'll no longer have an excuse NOT to exercise. Sigh...next thing you know I'll be going to the Mayors weight loss support group...hypothetically speaking of course.