How about buying a Chopad Ice Cube at the duty-free shop?

pu1. It won't make much of a difference after paying taxes

2017-12-25

OK

pu2. It's not easy to get the size at the duty-free shop, so the size you want will be easier to get at the department store

2017-12-25

OK

pu3. If you get a wedding mileage from a department store, you can make it cheaper

2017-12-25

OK