I have a (mostly) regular morning work routine, which starts with reading several sites to wake up my brain and feed my creativity. One staple of this diet is the work of James Lileks, whom I've been reading for over ten years. His unique mix of excellent writing, wit, design criticism and trivia just connects with me... and is a great example of doing what you love because you enjoy it. People visit his site(s) because his passion is contagious, but even if his traffic was zero, he'd still be doing it.
He recently overhauled his Institute of Official Cheer, which is one of those web destinations you could dive into anywhere and swim around for hours. Since he's unveiling it today, I figured it's as good a time as any to point you in his direction if you've never visited.
I hope you have a regular source of inspiration like this... a site, podcast, publication or person you gain inspiration from. If you don't have one, I'd challenge you to pick something and try it for a week. You might be surprised how much it shapes your work.