I use glabels. It is not fancy but I can set it up to print 30 labels on an a4 sheet. I only use the labels to id the bottles and not to impress and it is good enough for that.
Go to the website and download the free software. Design your label and then they will print and ship to you. I have been using this company and get nothing but respect about the labels. Ends up about $.84 per label with shipping. They are the best around.