I kegged my first brew and didn't realize that I should have had another container ready for the leftover beer. I have about a gallon of beer left in my carboy sitting on the yeast gunk. I just put the airlock back on and put it back in the dark. What is my best bet for using the rest of this beer? I'm guessing some plastic bottles from my local store?? I'm also assuming that the beer is fine sitting on the yeast? Hate to just dump the beer out.