Bright, Hot , Moist locations always help.
NOT!!!!!!!!!!!!!!
The prefered means of storage would be to seal it in an air tight bag or Jar. (i prefer jars with bags inside). Keep it out of any light (direct light especially) and stash it in the back of the freezer if possible. I like doubling the seals (bags in jars) in case a power outage or something which may cause the objects in the freezer to start melting and if theres any air in the jar the moisture in the air will condense to the inside of the jar and leave you with actual drops of water in the jar. If you can get your hands on those old jar sealers with the special lids then youll be really looking good.
anyway you store it it will still lose potentcy eventually, all you can do is try and slow the process.
Good luck,
db