Polishing your blade is a good idea...Flitz or Simichrome work well.
If you really want to ensure the little pores of the bead blast are free of stuff, after Flitzing, wipe down, or better, spray down, bathe your blade with solvent, then wipe thoroughly with a clean paper towel or lint free rag. Acetone, MEK (paint section at Home Depot), or Brake Cleaner from autoparts store for example... that should help either dissolve finger oils, sap, other sticky stuff, or flush out any water hiding in the cracks.
If you use WD-40 to "Water Displace", then go back with solvent to get that stuff out too, then apply Renaissance Wax.
Renaissance is expensive... $20 for a 2" by 3" tall round tub, 200ml = 7oz tub. You don't have to use much.
Wax isn't exactly durable under use, but works great for storage IF you solvent clean up front.
Just don't dribble the solvent on mammoth or walrus ivories, or wood, you'll strip out the natural or mineral oil that the maker soaked into the handle ...they'll crack.
One reputable maker told me he uses Turtle Wax. The automotive guys sure try to make "non yellowing" wax also, and while I haven't tried auto wax since I have a ready stash of Renaissance, it sure as hell is a lot cheaper.
Renaissance claim to fame is that the English developed it for preserving museum pieces... had to be totally white, totally clear, no yellowing, thin coat.
[This message has been edited by rdangerer (edited 05-10-2001).]