Prepay to guarantee availability?
Everything I read advises against pre-paying rental cars. I have a trip planned for a few months from now to a major U.S. city and my biggest anxiety is over having a reservation but no cars available when I get there. I've heard of this happening frequently among friends and family in the past year. Does prepaying guarantee availability? What other recommendations are there to guarantee availability? I have member cards from several rental car companies.
Gary