The local dudes who knew that my dad owned a studio would say, 'Ahh, dude is spoiled,' and this and that. But we didn't abuse it at all. I'd always ask if we could use the studio first, and if our dad didn't want us there he would tell us, and that was that. But I definitely tried to get down there as often as I could.
Even though I'll do finger warm-ups that go up and down the neck to build up my chops and dexterity, I never, ever sit around and practice the actual licks I'm gonna play live. If you do, then you'll be all worried about the complexity of getting the fingering right and everything else about it, as opposed to the feel.
To me, a sure-fire way to get in a rut is by sitting around playing by yourself for too long. You've gotta get out there and jam, man! You don't have to necessarily be in a band, all you've gotta have are a couple of buds who play too. They don't have to be guitarists either; jamming with a bassist or a drummer is cool.
I always go for that live, honest feel when I'm going for that first rhythm track. I'll never hold back on a part just so it'll be easier for me to double it later on - to my ears, it sounds sterile if you do that. I always want to get that initial track kicking and full of slurs, squeals and feel. I'll worry about doubling it later!