I went to Costco in Japan! It was wonderful- it even smelled like Costco. They had most of the normal stuff from the States, and a few Japanese-style things (like miso soup, daifuku powder, sushi, raw tuna...).
I bought black beans (for my lunches!), a big box of granola bars, red tea (instead of green or black tea that my family drinks at night which keeps me awake), and MUFFINS!!!
I am hoping to have a muffin party on Monday, everyone is missing American food.