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Costco [costco.com] has increased its multi-buy discount to extra $25 off 5 or extra $60 off 10 select clothing/apparel (up from $20 and $50 respectively).
Look for the items that have the multi-buy offer on product page (sorry, no way to filter). You may mix and match those items. Shipping is included in the price and you can select to ship each item to a different address at checkout.
