Chickenfoot is a great browser automation tool. With simple javascript commands like click("Submit") you can have the computer click on the button labeled "Submit". So, when can this come in handy? What about handling some automation in you online mail box.
For example. here is a Chickenfoot script which will create Folders for you in Hotmail:
var syms = "abcdefghijklmnopqrstuvwxyz"
for(var i = 0; i < syms.length; i++)
{
pick("Mark as unread listbox", "[New folder...]")
enter("Folder name:", syms[i])
click("Save")
}