I think Zenghost brings up a good point about "lower 48 state" restriction on the classifieds. If you send priority and it is less than a pound, there is no penalty for shipping to AK or HI. That should cover almost all folders and quite a few fixed blades.
Nothing is free. If there is no shipping charge, then the price of shipping is reflected in the unit cost. I do not do business with companies who try to make their shipping services a profit center. In my mind it is false advertising, simple as that.
I like to send stuff Priority. The VCR tape sized shipping box is perfect for most folders and is free if you use the service. It's size is just about right for a folder +the right amount of packing paper and is fairly sturdy.To me thesavings of using the box provided and the satisfaction provided to the receiver by having their item in a timely fashion is makes USPS Priority a bargain. The last time I priced boxes, decently sized sturdy ones were around a buck a pop.
Plus, the post office is handy for me and the UPS office is a giant pain.
One thing for sure is, AVOID Mailboxes ETC.and stores like them. They charge way more than a regular UPS or FEDEX outlet.
One thing I do if I am sending a very expensive knife is to send it USPS Express. It gives overnight delivery and automatic $1500insurance for ~$17 It is pretty easy to get close to that price with Priority, Confirmation and a lot of insurance on a knife anyway.
The purchaser really likes it too! They get it quick
I do not charge extra for shipping unless the purchaserhas specific instructions that would drive up the cost of shipping. Of course knife selling and trading is a matter of fun for me and not a way to make a living. To a business like 1SKS or New Graham, I understand why it wouldn't make sense to do it that way.
Great topic Mike!
Dave