how do you store the blades so they wont rust or anything will happen to them? after shaving i take the safety razor apart and wash everything with hot water then place the blade in a cup of rubbing alcohol and soak it. after that i rinse the blade with hot water and let dry. after that i place it back in the safety razor. any problems with doing this? im currently using numerous blades and so far am liking the derby but havent really tried the other ones yet.