I collect unused ingredients and when I get enough for a 5 gallon batch I brew a batch of "Riccetti's Best". No telling how it will taste (usually not great), but it is usually 6.5+ percent ABV.
As my brewing skills improve, the Riccetti's Best improves as well. Some would say if you can't make great beer, don't bother. But, I cannot stand to throw away anything and I enjoy the hodge podge experience every now and then.