As I understand it, Lent is a holiday where we celebrate the scientific method by changing exactly one variable in our lives for 40 days. This seems like a convenient Schelling point for rationalists to adopt, so:
What variable are you going to change for the next 40 days?
(I am really annoyed I didn't think of this yesterday.)
Sure. But I think it's easy to come up with lots of reasons like this not to try new things, with the end result being that you never try new things. Bad times. So, at least in my own life, I'm trying to implement a general policy of erring on the side of trying new things, and I'll cross the bad-methodology bridge once I get to it.