Way back in August, Matt Cushing (blog|twitter) was preparing to teach and asked for a list of “what do you wish you’d known when you started” items that he could present to his students. I threw a barrage of Twitter direct messages at him and he incorporated much of it into his post, but I thought it was worth posting here as well.
Most of these aren’t technical “I wish I understood the nuances of filtered indexes” type of thing.