When I peel stickers off the rim, some of them leave behind incredibly stubborn adhesive residue.
I'd been using a particular brand's product for a while now,
but it's become unobtainable within my search area.
I've tried various other brands' products,
but they're not very effective and it's frustrating.
Since I went through so many trials before settling on that "go-to product,"
the odds of finding something better from another manufacturer are basically zero.

But then I found a place that had it in stock.
Of all places—a bookstore.
This time I bought 20 bottles, and at about 300 yen cheaper per bottle,
that's a difference of 6,000 yen.


I can't write down "where" or "what" I bought.