You can get free shipping by ordering over $75 or invite and have 50 friends join to get 2 months free shipping (you also get $30 credit after the first 10 join, $30 more after the next 25 join, and $25 credit when friends make first $25 purchase within 30 days of joining) (Inviting yourself multiple times can get your account banned). There are also some items that have free shipping and those will say so in their descriptions. A few found so far are:
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