This thread makes me miss Costco pizza.
When I lived outside of Tokyo, my roommate and I used to take suitcases (!) on the train and then walk 2 miles to Costco to fill them with bagels, salsa, cheese, and corn chips. Quite the spectacle I assure you. At the end of every shopping trip we always ate one those HUGE slices of Costco pizza (American style pizza). Which was made all the more delicious when you consider that Japanese pizza is awful and costs $30 a pie anyways...
(Seafood, black squid ink, and mayo pizza anyone?
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)
Ah, memories.
Please tell me UK Costco sells slices of pizza in their stores.