Clear communication. One member of a band I was in was pretty good about getting gigs; if he was sitting at a bar, he would strike up a conversation with the bartender or manager, and then later in the day call me up and say we had a gig there. This is a good thing; having someone in the band who will go out and book the band is good. On the other hand, I would start asking him questions and find that stuff that I would think important was stuff that he didn't really focus on; like the stage, or even if there was a stage, much less power outlets at the stage, or how much we were actually getting paid, etc. So in general it can be a good thing to write down all the important stuff for each member to take with them when booking the band just so they remember to get all the details for the rest of the band. And it can be good to get full agreement between band members when making the list; it could be that for some members a long stair carry just might be an issue.