[kranner]

1. Embracing paranoia - enumerating everything that can go wrong with my code and testing for it. Over time, learning to think of more things that can break.

2. Writing down every question that occurs to me about the technology I am working with, at any point, specifically the behaviour of libraries and nuances of programming languages: I am not an expert in any programming language. Then chasing those questions until they are resolved.

3. When stuck with a slippery bug, attempting to reconstruct the bug in a toy program. If reconstructed, fixing it is easier. If not, I know it's not where I thought it was. Sometimes I never make it as far as actually writing the toy program; the intent is enough.