How fair is fair when it comes to what you charge for shipping? Is there some point where adding a little extra beyond the exact costs of the mailer, and shipment is unfair to the customer?
I ask this because I charge a flat fee of $6 for most shipping. $2.50 for the waterproof mailers I use + $2.70 or so for the actual mailing cost = $5.20
Only today I noticed a mailer went to Canada for only $1.70. So I ended up with about $1.50 over charge. I shrugged it off and considered it fee for the long walk I take to get to the post office each time I mail stuff.
As both buyers and dealers, what are your views on a little 'extra' on shipping?