Many people here have small living accommodations.
Many shop daily for necessities, instead of stocking up in bulk like we would in America.
Here is a sampling of 'small packages' available here:
a single roll of TP
1 serving pizza sauce
single serving crackers, cookies, and drink mix
mini Crisco can
single use packs of shampoo, toothpaste and moisturizer
single wrapped carrot, etc...
Even the watermelon (yellow!) comes in small packages.
(We can get red watermelon here, too!)
Here is some of the largest celery I've found yet, in contrast to some regular-sized green onions. Most celery bunches we've seen have stalks 1/2 this size!
Unlike what we're used to, it's not more cost efficient to buy larger quantities here. Two small units are even sometimes less expensive than buying the same amount in one larger package.