This is a totally Scott-esque way to start off. I picked Kanda first, because when I came here last year to visit, (before I ever decided to move here) it was where I stayed.
Only it wasn't. I stayed in Ochanomizu, which is close but not the same. Oh well. I walked around, found an udon shop that wasn't too full of salarymen, and had a 300 yen lunch of noodles and seaweed. Very healthy and cheap. There are ways to save money in Tokyo, don't believe everything you hear.