I just read another one of Tim Ferriss' 4-Hour Workweek book recommendations:
"This business has legs": How I Used Infomercial Marketing to Create the $100,000,000 ThighMaster Craze
It was a fast-moving and overall decent business/marketing book, I would say. And it was definitely of interest to me as I continue to develop and market HomeschoolDad.com.
I'm sure y'all, or y'all's parents, have a Thighmaster collecting dust somewhere in the house....it may even still be in the box!