I have a trip to Korea and Japan coming up in September. Typically, I charge everything and always decline offers to convert to USD. However, I'm curious, other than large establishments, how prevalent are credit cards and their daily use in Japan? I'm used to charging a $3 drink at a coffee house whenever in Europe, Australia, Canada, etc. Is it better to just hit up local Japanese ATM's and use cash (hate to lose out on points, but...). If it matters, I'll be training my way up from Fukuoka area to Tokyo (only two nights in Tokyo).

Thanks in advance for any insight.

^