I tried Japan's cheap but yummy convenience store egg sandwiches at 3 chains

The egg sandwich showdown: Lawson, 7-Eleven, or Family Mart? Cheryl Teh Egg sandwiches are a popular comfort food in Japanese convenience stores, or konbinis. At Family Mart, Lawson, and 7-Eleven, you can get one for less than $2. I, a lover of egg salad sandwiches, set out to rank them on my trip to Tokyo this summer. I've been to Japan over a dozen times and eaten enough convenience store egg salad sandwiches to call myself an authority. I've had them for breakfast, at the standing tables...