Temp-to-hire openings around Toledo - any advice?

I am looking at seasonal jobs around Toledo that might lead to something longer. This is my first time dealing with any of this. I would like to avoid a gap in my résumé. Has anyone been converted to permanent?

Keep a list of supervisors' names. A reference from one of them helped me land my next job.

I was converted after one season because I showed up every day and volunteered for extra shifts. Managers remember that.