I have ocd too and the first counselor i went to as I had the check and recheck oven off door locked etc, over and over and over again, she broke me of the habit by suggesting ibuy a small pocketsize notebook and write down on one side the bad habits and along the top say, the dates, when I checked each ITEM ONE TIME i was to put a check mark in appropriate spot in notebook that way when I left and thought OMG Did I turn off the stove, I could check for the check mark and that eased my mind, woujld not have marked it if I DIDNT turn off the stove, eventually didn't need the notebook anymore and only checked things once after doing them, i was shocked but it really worked.