(Re-posting to the new Rinker Custom Projects category)
If your galley faucet has cylindrical knobs, here's an inexpensive mod that will solve an inconvenient problem.
The problem is that the faucet knobs are too darned slippery. They are super-smooth metal cylinders with no knurling or other features to grip. If you get any soap or grease on your fingers, you can't turn the water on without a rag or paper towel. Easy solution: Put o-rings on the handles.
Here's the original faucet:
And here's the faucet with o-rings:
The nominal size is: 1-3/16" outer diameter, 15/16" inner diameter, 1/8" thickness. For some vendors, this size is referred to as "size 213".
You can't just buy cheap black rubber o-rings from the hardware store, because they will dry out and crack. Mine are specialty o-rings made of silicon (red) and fluorosilicon (blue). I've had them for a few months, and they are holding up well. There are many places to get them, but here are the ones I used: