I think beyond the obvious clothes and stuff, there's things you may not think of that are really cool here - they design everything nicely. I mean I just came from living in a place where everything was really ugly, and now I live in this country where all of the products are designed to be really cool looking.... it's actually very easy to get used to, it's easy on the soul - there is comfort in knowing that there exists a product out there to serve what needs you have or will have someday, and that they will be easy on the eyes.
For example, perhaps you need a beautifully designed air humidifier:
a minimalist paper and pen folder:
could go on and on, but there are definitely some nicely designed things that are relevant to anybody's interests. Certainly many things here are Japanese-y, like $250 titanium chopsticks in a carry case, but yeah if you are like me and are in search of a non-ugly humidifier or something like that, this is a boon.
I think the Japanese have great offerings for men's bags too, since so many people here commute on trains and stuff and it's basically engrained for everybody to have a nice bag all the time.
Beyond the obvious streetwear brand backpacks and Yoshida Head Porter stuff that you probably know about, there are nice briefcases, messenger bags, computer bags, etc from many companies. I always found it rather difficult to find a nice work bag in America but there are plenty of nice looking ones in Japan. I see people on here all the time really frustrated and willing to spend up to $500 on a messenger bag or something, and I still don't think they end up with the exact bag they're after - the men's bag market in America seems small. You guys end up going with Saddleback, Filson, or Tumi or some other brand for a work bag, because there just aren't that many choices really. I will try to focus on those and get some featured.