Always book a hotel (or AirBNB) close to a Yamanote line station. 90% of attractions are along the Yamanote line.
Nakano broadway is worth seeing if you like older anime from the 80s and 90s.
For cheap used retro games, anime goods etc go to Bookoff. The well known stores in Akihabara like Super Potato etc are a bit of a ripoff.
If you want to visit the Ghibli museum, you need to book it at 10AM (Japan time) on the 10th of december. Tickets sell out in less than an hour. Found the museum to be slightly underwhelming though, personally.
Nah you can only book a month ahead of time. OP, if you're in the US, that's going to be anywhere between 19:00 and 22:00 on the 9th for the booking, depending on what part of the US you're in.
I think we'll only be staying in Tokyo, but I'll keep this in mind if we plan another trip to Japan.
Speaking of trains though, I'll be landing in Narita Airport and I remember seeing that the train from Narita to the heart of Tokyo is expensive or something.
The NAVITIME app is more reliable than Google Maps when it comes to transit planning. Plus, you can check the ticket prices including if you're using tourist passes (e.g. JR pass or local subway passes). Taxis are expensive af.
Tbh if you're not going in a big group, hotels are far more reliable than AirBnBs and their odd regulations.
Use coin laundry or washing machines in hotels instead of packing a lot of clothes.
I guess it might depend on which Akibahara store you're going to, but at least a good number of them when I went this year (IMO) are just too 'generic' with a lot of the floor space dedicated to just the most popular franchises, with uninspiring merch (e.g. tshirts, acrylic stands) that can easily be found online.
Stuff in Nakano Broadway (where a large portion of the floorspace is dedicated to Mandarake's secondhand shops) are rarer and more diversified, and there's even a shop selling original animation cels of old anime (I was salivating over a Cardcaptor Sakura one which cost JPY500,000...). There's also the JOJO bar which is insanely cool.
I browsed r/JapanTravel a lot to look up tips and general recommendations.