I have about 25 auctions ending each sunday, so I have 15 or so parcels to post on a Monday and no car (I load up the pram). I know a postman used to come to my work years ago every day and we didn't even always have something for him. Is that something that is really expensive and only for businesses?
I pay for my postage through paypal and just go to the office to get proof of postage.
It isn't a massive hardship to catch the bus with a pramful of small parcels, but obvioulsy it would be easier if I didn't have to, and what would happen it i was selling a large item?