Re: Lubricating cables
I've definitely thought of graphite, the main advantage of course being that it's dry so no gumming up issues when it gets old, unlike a lot of greases.
I actually called a few bike shops and two of them suggested something called Duralube (it's apparently an engine treatment but they said they use it on cables) and another bike shop suggested chain lube, which I happen to have.
I think any lubricant will work right off the bat when fresh but I'm most concerned about the gumming up when the lube gets old making the cables worse than they are being dry with no lube at all.
McGyver could fix that with bubble gum.