I outline fairly extensively because I'm usually dealing with real events. I don't need to give myself as much information as I used to, but I still like to have two pages of outline for every projected 100 pages of manuscript.
I ride horseback - arthritic knees permitting - or listen to opera. Sometimes I cook. I used to do needlework, but it's hard on my hands now, so I only do it occasionally, but I like it. And, of course, I read.
I think it is probably more important to attend specialized conventions for a journeyman writer than any other, but it's useful at all stages of a career, if for nothing else, to find out how the industry is working at any given time.