I'm currently using a Tuf-Cloth on mine. Previous to that, I've just used rem-oil on them. Every day is a bit often if you're just storing them. Just oil them lightly, wiping an oil rag over the blade. Should be good for awhile like that unless you are in a very humid environment. For long term storage, do the same thing, then toss them in a small safe or rubber snapbox. Toss a few dessication sacks (the things in Beef Jerky Bags) in, and it'll keep most rust at bay.
If it's a knife I'm using a lot, meh..I'll oil it whenever I see rust, and after cleaning if it gets messy.