Storing it inside whole beans is definately the best option. After that, the best way is not to store - buy it as you go. Do not open bags until required. Fridge and freezer storage is a matter of choice but makes no difference.
But a grinder and in a manly yet loving, tender voice, full of authorirty, tell her to shift her stuff around to make room fior it. Take her a cup in bed. She'll be on side in a sip.