Music and guitars in particular. Math, Physic, Electronic, teaching and tutoring (that's what I do for a living right now). Friends, sea, sailing, travelling, blah blah blah....
Classical music (especially Bach), Hard Rock, Heavy Metal, some Seattle bands... and all the Bigs from the past...that's it. Don't expect a list of names from me...
Burnt it, long ago. You should do the same
A lot. I love all the great classics, not that much into the "new" writers.