I've come up with a brilliant invention. I know, I know, I should be modest, but I can't help it, this is, as the Brits would say, brilliant.
So, you know how when you're driving in the rain you have to have your windshield wipers on, but it's not raining hard enough to even warrant the lowest setting? So you can either leave them on low and deal with the squeak the blades will make because there's not enough water on the glass, or you can wait till you get annoyed enough by the fact that you can't see to temporarily turn on the wipers and then lather rinse repeat.
Or how about this: You're listening to a great song, blasting it through your cheap speakers, singing at the top of your lungs, and then the wipers hit the edge of the windshield. COMPLETELY off tempo. And it's so distracting that you speed up, just so that you can justify switching to a faster wiper setting. Only to find out, this one's off too!
Have no fear, my latest invention to the rescue! How many of you took piano lessons as a wee little one? Come on, I know you did, raise your hand, don't be shy. Well, if so, you may recall a little device known as a metronome. It has the ability to keep time at a wide spectrum of tempos, by virtue of a sliding weight on a pendulum. You can choose tempos all the way from ~50, Largo, to ~200, Presto.
Here's where my idea comes into play. What if instead of the regular knob for high, medium and low, there was a metronome style knob? You could choose exactly what tempo you wanted, whether it was to match the beat of your current song, or simply to make life easier by choosing just the right speed to match the amount of precipitation in the air. Either way, your call. You're in the driver's seat (pun intended of course). ;)
You may henceforth refer to me as Wile E. Coyote, Suuuper Genius.