I was just wondering, do you guys find counting the hours/days/weeks/whatever since your last incident of SI helpful or unhelpful? From what I can see, lots of people do it (which would suggest some benefit?) but lots of people just end up getting really upset when they slip up once ("I ruined everything! I screwed up! I feel awful! that's one month and two weeks and four days down the drain..."). I know that I used to do it myself, but it just made me feel worse when I broke the chain of days I managed to go without.