I have only sold on the B/S/T a couple of times and other than that I never really ship out packages for any reason. I've found that shipping charges seem to be a bit steep. Some of you must of some tips and tricks on safely shipping razors while keeping it relatively cost effective. Are flat-rate boxes worth it at all? Or not really? I don't want to send one or two razors in an envelope, even if it's padded just because I don't want to chance damage being done to the razors.