Who Knew are a series of books written by Bruce Lubbin that claims it can help you save money on bills, groceries, gas, medicine and more.
The first book you get is Who Knew? 10,001 Solutions to Everyday problems which teaches you things including
- How to reuse items at home
- Make Home repairs easier
- Lower Energy Costs
- Learn Grandma/Grandpa Secrets
The second book you receive is the Who Knew? Thousands Of Money Saving Secrets for Cooking, Cleaning and All Around Your Home which teaches things like
- How to make food laster
- Tips on cleaning things without chemicals
- Money saving secrets
It also mentions on the infomercial that it will also teach you how to make money from home.