>put some wax paper
>between them

Entirely unnecessary. The only important things are to make sure you've
wrapped them air-tight and to thaw them completely before attempting to use
them.

Since the quality of commercial tortillas varies so much, you may or may not be
used to the delight of a truly fresh (corn) tortilla from a really top-notch
supplier. Freezing them will certainly deteriorate their special moist
tenderness and aroma, and may hurt their ability to balloon in hot oil. But so
will storing them for a day in the fridge after opening the package.

Neil