Various Planters nuts (including dry roasted, honey roasted, and cocktail peanuts) are BOGO (buy one, get one free).
Store brand Loratadine (generic Alavert or Claritin) 30-60 count is BOGO. I bought two 120-count bottles the last time they were on sale, since those were included then -- but they're not this time.
Store brand Cetirizine HCL (generic Zyrtec) 30-60 count is BOGO. I know some of you use this, and I bought a pair of 30-count blister-packs to try it now that it's OTC.
In other news, it really pisses me off that I'm not allowed to buy two packages of store-brand Sudafed. There's a limit of 9 grams per person. Once the regulators have decided they need the store to record my driver license number and get my name and address in order to sell me the item, also limiting the purchase to one package is ludicrous.