If you use tupperware put a slice of orange in during the last week, because sometimes your bud tastes "plasticy". Dont use zip lock bags they are very poor for curing. You can get a 6 pack of mason jars at wally world, or off the net for like $10...or less. I can understand people who do multi-pounds each month using large rubbermaid tubs for curing, but you dont have that much to cure so get the mason jars please
The more air tight the container the slower you are able to cure, and this help pull the moisture from the center on your nugs, so almost all of your cannaboids change to their psychoactive form. Yes, your herb will gain potency with the cure. As moisture is removed the cannaboids (what get you twisted) changed from an acidic, non-psychoactive chemical to a neutral psychoactive form.
EDIT: Nice first grow by the way. I hope you enjoyed it, and I hope this experience gave you a new love for our beloved ganja. So don't skimp at the final leg of your grow...get the mason jars!
http://www.canningpantry.com/canning-jars.html
Peace, and Big Buds