The site has its problems. I do not know if is showing items that are "sold out", they may NOT be sold out, Please ask if you want it. some orders have been duplicated, I have no way to automatically put the inventory back, paypal causes a lot of problems.
There is a 15% DISCOUNT for mailing in payments and if the order is small shipping can be adjusted DOWN for MAILED in payments. As stated before Paypal causes a lot of problems for me and sucks up VAST amounts of my time that I would rather spend on something more useful and rewarding. And more pleasant.
I have hundred of other items I could be selling, but because of the vast amounts of time it takes to deal with shipping I am not listing yet. This is why shipping is the way it is, I do not have weeks of time to attempt to figure it out I would have to redo it once or 2 times per year, and the PO just keeps making it more and more complicated every time they raise the rates, and the rates are raised 1 or more times per year.