That's a very interesting idea. Again, it reminds me of certain forms of magic - for example, of magic practioners who used to surround themselves with imagery of the God of Music before a music recital on the theory it would help them play better. I wish there were studies as to the effectiveness of that, but it's kind of hard to get funding to study magic. I suspect that saying a prayer to God for help resisting temptation may work in the same way - you're activating your concept of God and with it the entire religious system of morality and self-control. In the same way, giving yourself a reminder of rationalism or even reciting one of those rationalist litanies might make the stuff you learn here more salient.

Tell you what - tattoo "Less Wrong" on your palm and post a picture on here, and I'll upvote ten of your comments. Ten karma points! Think about it! That would totally be worth it!