If you're worried about getting laid off, here's some consolation: So is everyone else. Follow these do's and don'ts to raise the odds that your job stays, well, yours.
DO take credit... but don't "walk around with a big neon sign that says I'M GREAT," says career coach Marie McIntyre. "Look for opportunities to let people know what you're doing." One good strategy: Create a paper trail by copying your boss on e-mail (selectively!). And periodically take the initiative to send a summary of what you're working on.
DON'T ask for a raise or a promotion. Be patient, and be grateful for now that you've got a job.