“Sale Season"

Every year, in Japan, shortly after Christmas the "Sale Season" begins.
At this time all the items that seemed so rare and precious during Christmas are sold at nominal discounts that are apparently worth fighting for.

During this time otherwise fragile old ladies (おばさん), whom you would otherwise give up your seat for on the train..maybe, and hitherto apparently dainty and feminine young ladies (that you might have considered introducing to your mother prior to this spectacle) commence pushing and shoving each other for on-sale items.
Some of these on-sale items being "Happy Bags", the contents of which are unknown but are "on sale" for prices that range from anywhere between ¥1000 and ¥50,000. Customers start forming lines (mobs really) before the stores open and they know where everything they want is located beforehand.

Furthermore, TV shows are produced extolling the efforts of these women, as cameramen venture into the fray to record their valiant attempts up close and personal.

A young lady shuffles along with the same suitcase she went to Guam with so that she can carry all her loot. (Actually sometimes the loot is sold with the suitcase so that they have a way to carry it.)

A salesclerk uses a meagaphone to drown out a competing salesclerk a few feet away...who also has a megaphone...who is trying to drown out the competing salesclerk next to her...who also has a megaphone..

"Pirates of the Caribbean" is really big here. How about some pirate bling to add to your booty? (pun intended)

A mountain of leopard skin handbags which I hitherto thought were really rare, seeing that they were previously so expensive and obviously made from real leopard skin.

"Happy bags" (No relation to "Fun bags".)