^^^Center jersey packet in a neoprene case.

I just put the bare phone in a jersey pocket. I worked for a phone company and I'm working through the phones I got for free. But they seem to handle it just fine. Even rain rides.

I've used a JerseyBin for my phone for a couple of years. The phone's touch screen works fine through the plastic. In recent months the JerseyBin has cracked open along the "seams" by the zip-lock seal, but not enough yet to make me toss it. I also got a larger, clear one that just fits in a jersey pocket, and I use that occasionally for ride information.

Don't use the brown air; it increases rolling resistance from the internal friction and the extra weight in your wheels is devastating for your average speed.

I keep mine in my pants pocket when I wear street clothes to ride (99% of time).
Otherwise, it goes in the saddle bag.

Yeah, a couple.