working

Clothing in Japan and working

So I am planning on going to Japan for a year after I graduate next summer. At the moment I am looking at applying for the JET programme and also saving money up in case I don't get on that and have to go it alone and pay for TEFL and the such. I worked out I am going to need to work while I am out there of course and all I have heard about is teaching English and not much else. So ya is there anything else I could look at whilst on a working holiday?
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