Special offer in July: 
Pay regular postage & handling cost for 1st lot won and then save 50% of advertised cost for extra lot won (when sent together) 
Australia: $ 1.00 for 1st lot, then 0,25 (instead of 0.50) for additional lots Worldwide: $ 2.50 for 1st lot, then 0.50 (instead of 1.00) for additional lots