I've probably saved hundreds of dollars by using YouTube. It provides a great service if you want to learn how to fix something. I got step-by-step instructions on how to fix my washing machine which probably save either an expensive repair bill or more likely the expense of a new machine. It's also a great tool, if you aren't covered for physiotherapy. There are videos by professional physiotherapists and chiropractors demonstrating exercises for your aching body part. Of course, as well there is free entertainment from everything to comedy sketches to classic sitcoms such as "The Beverly Hillbillies". (I'm really dating myself with that one.)
Any other suggestions or ideas?