Since I started brewing I've been saving one bottle from each batch, just because. The other day I figured I'd start drinking them, no reason to save them forever. Wow, have some of them changed for the better. A couple of my early brews I wrote off as no good, wouldn't brew again. After a few months they've become pretty good, and one or two I drank too soon for sure. Being that my first batches were 1 gallon, I didn't have much to work with. Moral of the story, if your beer isn't that good after a short time in the bottle, let it sit, good things might develop. 
