First off, I'm used my old friend vinegar to "descale" my coffee maker. It has been delivering a few less sips in the morning.

I brewed two quarts of vinegar coffee, followed by two tanks of water.

Now my house smells like Easter. I'll have to see how the coffee is tomorrow. (It taste like coffee, not pickles. And that is good.)
I also used lemon Kool-Aid to clean the dishwasher. Two packs for good measure.

I ran it through a normal load, without dishes, and that crusty white bar in the bottom turned into a metal pipe again.

And as a bonus, I have plenty I have plenty of Long John Silver style vinegar for my fish and chips (they're just French fries until you dump the vinegar on them.)

So productive, for a weeknight.
I hate cleaning but love tricks, so if you've tried something cool, let me know.