Customizable PT Reps VocalizerDid you know your browser probably has a computer voice synthesizer built in?
One use for this might be if you have timed Physical Therapy exercises to do - say, ten reps of 10 seconds each. Who wants to count that much? Tell the computer what instructions to give you and how long to wait before the next instruction. (x deletes an instruction block, ↻ duplicates it to the end of the list)
Also once you have set up your routine, you can then bookmark the page and come back to it. You could even add it to the homescreen of your smartphone!