Devices for reprogramming

In one of the chapters of TSOG, "The 'Correct' Date," RAW writes, "I have used a variety of different calendars over the last 30 years -- partly because I find it amusing to do so, but mostly for reasons of neurolinguistic self-education. (I employ a few dozen other devices of this sort to reprogram myself out of conventional semantic grids: experiments, if you will, on Guinea Pig Bob.)"

Off the top of my head, I can think of two other devices he recommended: Reading a political magazine, once a month, from a group you disagree with, and meditating daily. What are some of the others?