4-pack of StarKist Chunk Light Tuna for $2.98 on Amazon (75 cents per can; limit of ten 4-packs per account)

Amazon has got this 4-pack of StarKist Chunk Light Tuna 5 oz. cans for $2.98 (75 cents per can).  Limit 10 per account.

This is an Amazon Add-On item, which means that it ships for free with a $25 minimum order if you are an Amazon Prime member (and its price of $2.98 counts towards that $25), or it ships for free with a $49 minimum order if you're not a Prime member.  You can buy multiples of any of this item to help get you to your $25 or $49 minimum for free shipping.  (Other Amazon Add-On item deals can be found here.)