10 Days in Tokyo

I'll be taking a 10 day solo trip starting next Thursday.

I'm early 30's male. Love experiencing different cultures, food, art, shopping/fashion, sports and meeting new people.

I've been scanning this sub for a few weeks gathering different tips from all of your post so thanks for that.

Here are a few points I've saw and wanted to ask about and also gather any additional recommendations.

• I noticed people packaging super light, in one post I saw a lady mention that she only havd a Carry on ?
• I have tattoos, I want to experience an onsen but I saw a lot of post saying that tattoos would be frowned upon so I would need a private one ?
• I really would like to go see Mt Fuji, would a day dedicated to that be enough ?
• Saw car culture meetups, any experience with those ?  It looked like a really good time.
• I would love to see a show, music Japanese r&b, singing etc. Speakeasy type environment. Chat recommended BarBenFeddich, Trench, The Room, Billboard Live and Cotton Room.
• I saw a lot of mention of shipping luggage ? What's that about?
• I shoot a lot of film, would love to get some developed while there. Any experience?

Thanks!