I recently won 10 auctions from the same seller (a CCGTCC member) and he did something creative. Total shipping was to be $4.50, but he offered to reduce it to $1.00 if I paid by check rather than PayPal. Since I was in no hurry (and am a rather cheap guy), I sprung for the .37 stamp and mailed a check to save the fee. There was no mention of this 'discount' in the auction, so it was a surprise to me (not complaining, just was an interesting twist to the shipping idea).