Have you ever tried to say 'Discount please!' for shopping in some store in other contries??
This is one of appliance stores, named 'Yodobashi Camera' in Shinjuku.
If you don't need any 'Point cards' , and buy some kinds of items,
your request will succeed!
Enjoy your shopping in Japan(^^)
***Please note that your 'discount please' not always succeed.
**Please make sure that most of hotels also not accept your discount request.