For electronics - including cameras, watches, computers and the newest electronic appliance, Akihabara and the west side of Shinjuku station carry the widest variety. Be aware that some electronic stores have escalators going up, but only stairs for going down. Most likely an elevator will also be available, but if you are in a wheelchair it is best to ask before heading up the escalator. Japanese souvenirs are most easily found near temples and shrines such as Sensoji Temple in Asakusa or at the International Arcade in Hibiya behind the Imperial Hotel. Beyond these areas, you can find more expensive souvenirs strolling around the Ginza area.
Souvenir shops tend to be crowded with people and goods.
Getting into most of these shops in a wheelchair may be quite difficult, although the International Arcade has better overall access than the stores in Asakusa. When you go shopping you may face trouble communicating. In the big shops or department stores,there will be some English speaking sales clerks to assist you in your shopping. Although their English ability may be limited, they will probably be eager to help you. But at small shops, like little souvenir shops, it is sometimes impossible to communicate in English.