If the temporary route is for you, start by registering with the four or five best services, and be aggressive about seeking assignments. Call the human resources departments of former employers and large local firms and ask which temp services they use. Don't turn down work because it's below your skill level. The most accommodating temps get the most jobs. If you're collecting Social Security or unemployment, you may still be able to temp part time without jeopardizing your benefits.
Employers believe temping indicates initiative, flexibility and good skills.
Also be sure to solicit complimentary memos when an assignment is finished.