Uses for the Flash seek bar
Using the Flash seek bar bookmarklet, I found two hidden segments at the end of Strong Bad e-mail 87: Mile. They can't be reached by the usual method of clicking on things at the end of the cartoon. Burning Horizon has instructions for getting to the first hidden segment but not the second.
The bookmarklet allowed me to read all of the signs in the desert in This Land.
A co-worker pointed out that you can use the bookmarklet to reach minigames in Frank's Adventure 3. You have to pause before using the slider for it to work correctly.