How do I preserve my GXL steering wheel?

[jaydee]

I have a GXL steering wheel on my car, but also have a spare in VGC I picked up cheap.
So it's just sitting in an old cupboard in my shed.
Wondering what I can do to preserve it so the rubber doesn't dry out and crack.
I spray heaps of Armoral on it from time to time and massage it in.
But can I coat it in something and then wrap it up in a sealed plastic bag or something?



This isn't mine, just copied a pic, this one looks pretty dirty.