I use it as my household cleaner. I mix equal parts water and vinegar and use it to wipe down the counters, bathtubs, sinks, etc.
We also have really bad hard water here, so every couple of months or so, I fill a bowl with vinegar, prop it up with a shoe box so it's under the sink faucet and let it eat away at the greenish hardwater junk that ruins my water flow. Then I unscrew the shower head and do the same thing.