I've been thinking the most convenient way to keep my razor from rusting is to store it in alcohol (instead of oiling it after each use). I've read about this being done with double-edged razor blades. Of course, coming across this subject of alcohol causing rust is bothering me.

I think the best information I've found is here: Is Rubbing Alcohol and Steel a good idea?
"The reason the metal in question rusted after an alcohol bath is because it had just been cleaned (i.e., whatever water-repellent oil may have been present has now been removed), and moisture clung to the bare steel. Alcohol will not 'cause' metals to rust."
They also mention the possibility that the alcohol evaporated away leaving only water.