There's always the trick of placing them in a drawer with a few blocks of Camphor.

This may also be useful but I have not tried it yet:

DuPont™ Teflon™ Non-Stick Dry-Film Lubricant

A unique dry-film lubricant that leaves a micro-thin, pure Teflon® fluoropolymer coating. This clean, long-lasting coating repels abrasive contaminants, resists corrosion, and reduces friction and squeaks. Excellent for high temperatures.

Goes on wet to penetrate, then sets up with a clean, dry, white micro-thin coatingNon-staining film bonds to most surfaces Lubricates parts to reduce sticking and squeaking Thin coating is excellent for tight tolerances and sliding tracks Helps materials resist chemical contaminants or water Acts as a protective coating for metal, plastic and rubber. Applications:

Use on surfaces requiring a dry, non-oily, non-staining and silicone-free film Perfect for tight tolerance applications where a micro-film lubricant is needed Chains, gears, cables, bearings, valves, shafts, tracks and slides Hinges, locks, fasteners, sliding surfaces, sealers, blades and bulb threads Electrical switches and connectors Mowers, garden equipment, snow blowers, gaskets, seals, rollers, plastic gears, sleeves, ropes, drive belts and bushings Outdoor power equipment, firearms, fishing, cycling, sailing and marine Cutting blades Gaskets, seals, rollers, plastic gears, sleeves, drive belts and bushings Can withstand temperatures up to 480°F (250°C)

Regards, Neil Tucson, WZ