What are your favorite non-wine Costco/Kirkland products?

I do love their cheeses. Their craft beers aren't bad, either. I will also pick up some items in the drug section, as they are always less expensive than the name brands. I also buy multiples of their Kirkland white leather tennis shoes, when they're in stock.

For those gourmands here, I recently saw in the frozen section, some Kirkland Japanese Wagyu A-5 ribeye steaks for $99.99 lb. A package of 2 would set you back only $150-$200. Looked like they might be good for teppanyaki.

I agree that their cheeses are excellent.  Their shredded parmesan is a must-buy.

I only buy my steaks at Costco; the prime cuts are good bargains.  So are the choice cuts, for that matter. 

Love the thick cut bacon.

I like the seafood:  the salmon is good, and the lobster tails are pretty good value.  The tuna steaks can be hit and miss but when they have them they are really good.

The pecan pie (when you can find it) is awesome, as is the pumpkin pie and key lime pies.

My only problem with Costco seafood is their reliance on Atlantic salmon (which I feel is inferior to Pacific), and their manila clams, which are not as fresh as I could get them elsewhere. (My fault for living 1/2 mile from Puget Sound beaches, I guess. I can literally dig up enough for dinner in 1/2 hour.)

Olive oil and the choice of cheeses are excelllent!

They have a truffled parmesan salt shaker that is just awesome on popcorn

I basically get all my proteins from Costco.  Love to get a whole Prime Strip Loin or tenderloin to wet age for a few weeks before cutting into steaks.

Bacon

Gin

Spices

Olive Oil

Paper Goods

OTC medications....I mean the list could go on and on LOL