Lesabre has 135K miles on it, so my steering wheel "foam cover" (don't know what else to call it) starts to fall apart. Bought a leather cover, but it looks kinda ugly. Is there anything else I can do aside from the usual steering wheel covers?

Not trying to be funny, and I know this is no help, but I saw a car just recently that had the steering wheel duct taped. Quite amusing. That stuff can be used for anything.

My interior is gray, so it might do the trick :)

You could always try to get one from a boneyard and replace it your self. Autozone or others stores will "rent" you the tools. May be a better color match than duct tape.