Switch Lock — Episode 3: Is free good for you?

Episode 1 in 2006 featured this technology for $12.95 and Episode 2 six days ago brought it down to $6.99.

In a June 2, 2009 Scavenging blog post entitled "Ten Practical Uses For Your Credit Cards," Anneli Rufus and Kristan Lawson included the one up top, "Light Switch Cover."

Take it one step further and make the opening just large enough to fit over the business end of the switch, but tight enough so it can't move.

Voila — instant switch guard.

Free, the way we like it.

In fact, if you stop using the card, it'll pay you.

Note to file: Forward this post to Mark Frauenfelder over at Make.