Your Favourite Tokyo

Hi Tokyo Community. What's come up in your mind when you have only Protected content free staying in Metropolitan area? Your tips got through 'Tokyo Experiece' would be highly appreciated.
I will be visiting Tokyo during holiday period this December finally since 3 years of interval, so, any idea about stroll-around, chill-out, cosy places or refreshing idea would also be of interest. Could you share your 'Favorite Tokyo?

This kind of question might be a bit mediocre to the community,and I have no idea about Tokyo Forum, active or not, however, I'll give it a try here.

I'm also looking forward to Tokyo event for the first time hopefully for good networking. My stay could be flexible. So, any kind of advice would be welcome.
Enjoy the stunning Autumn!