Will do.

But I must say, nothing beats Mt.Fuji + its reflection on Lake Kawaguchiko...

tbh, the custom officer in airports don't care 1. they don't even stop to collect the tax refund receipt that are attached to my passport. even when i hand them the receipt, they don't even demand to see the goods.

1. Like you said, it's already keyed into the system. so receipt or not, it's actually quite pointless for the custom in airport to collect it. even when i gave them the tax receipt, they didn't demand to see my stuff as well.

2. In practical, you won't hand-carry all the tax-free stuff you bought. Unless I missed out something, I don't remember going through custom prior to check-in luggage.

3. For all intent and purposes, I believe they just want the tourists to spend more. If they worry about the 'minor abuse' of their tax-free practice, they could have just easily make consumable items as non-tax free. Simple as that.

nope, usually it's included as part of the "amenities" . owners don't want to lose out since most airbnb in Japan are doing it.

the only thing you need to consider is the period when u just arrive and also when you move to another airbnb. obviously you won't have the pocket wifi during this time.

also, I'm not sure if data quota could be an issue since those pocket wifi typically have quite high data cap or unlimited.