Above all, have fun. Almost without exception the people who stay have positive attitudes and really seem to enjoy their work. On the other hand, the people who really don't like their jobs, and who make that obvious to others, usually find themselves on the top of the job cut list. So have fun. And if you aren't having fun, maybe you should do yourself and your co-workers a favor and leave to find something that does turn you on.
Life is short.
You've got to enjoy your work. Otherwise it feels like work. The most successful people don't thing of work as work. They are passionate about what they do and their passion is infectious. There are so many more, and each of these ideas deserve their own chapter to more fully explore there potential and value.