How Can I Raise Morale in the Office?

Dear Experts, Morale is down in our office. There were no bonuses or raises given out at our company this year. People are tired, scared and cranky - and I'm sick of it. What can I do? I can't leave because there are no jobs. And actually, I like my current job/company when morale isn't like this. Besides trying to ignore the bad attitudes and keep a positive one, is there anything I can do to turn things around? Our Twitter Advice Project (T.A.P.) is no longer an active campaign. To find an answer to the above question, please use the "Search" box in the right-hand column of this website.