Lack of motivation

So I'm trying to figure out some new way to motivate myself for work. I'm sick of waking up in the morning and thinking, "I wish I didn't have to go to work today" or sitting in the office thinking, "Is it 5 pm yet?"

I was thinking, last year, I did this Invisible Children Challenge. It was a huge undertaking and totally took over my life. But it was a lot of fun. And I've learned from it and could probably pull off an even more successful challenge this time around. And it'd give me the chance to organize another large-scale event and feel like I'm having some positive impact.

I don't know. I'll have to think about this some more....