The best thing to do is just to keep your stash in an airtight container - if you can find some sort of jar with a rubber seal, that works wonders. Putting a ziploc baggie inside a tupperware container is probably good enough. I've heard of people putting orange peels or other things to keep the weed from getting dry. I dunno who told you to let your weed dry out, but I prefer to keep mine fairly fresh. If it's VERY fresh (like right off the plant), it won't burn well, but a skilled grower will know how to trim and dry his product correctly, so if it's good weed, you want to try to keep it as close to how you got it as possible.