For beer, I primary in plastic pails and secondary in Better Bottles.
I have two glass carboys, a 6.5 gallon and a 5 gallon. I might sell them both or keep them for mead, I can't decide.
I use oxyclean for cleaning. To clean gunk out of a carboy or Better Bottle, I put a washcloth in and swirl it around with a small amount of water. Does the trick every time. Sometimes overnight soaking with oxyclean helps, too.