Japan Travel Recommendations and Tips

I'm heading to Japan this fall and plan to visit Kyoto, Osaka, and Tokyo. While I'm there, I want to buy a new check-in and carry-on suitcase, probably at GinzaKaren or Don Quijote.

I'm considering bringing a BAGGU cloud carry-on for Kyoto and Osaka, but I'm not sure if that's a good idea. Most of my shopping will be in Tokyo, though I'll probably buy a few things in Kyoto and Osaka too.

I plan to bring back clothes, two pairs of shoes, snacks, souvenirs, and other small items.

I know someone who also planned to buy new luggage in Japan, so they packed everything in a carry-on. At the end of their trip, they asked the hotel front desk to dispose of their old carry-on. I don't feel comfortable asking someone else to get rid of luggage I don't want anymore.

Have you ever done something similar, or what would you do in my situation?