初(はつ)売(う)りfirst business conducted by retailers in the New Year

デパートの初売(はつう)りは一月(いちがつ)一日(ついたち)だ。

The department store's first sale of the year is on January 1st.

初売(はつう)りのセールで車(くるま)を買(か)いました。

I bought a car at the New Year's sale.

初売(はつう)りになると財布(さいふ)の紐(ひも)が緩(ゆる)んでしまいます。

During the first sale of the year, I tend to loosen the strings of my wallet.

欲(ほ)しくもないものを初売(はつう)りだからと買(か)うのは賢明(けんめい)ではない。

It's not wise to buy things you don't even want just because it's the first sale of the year.

初売(はつう)りで安(やす)く服(ふく)を買(か)えたのはいいものの、まだ一回(いっかい)も着(き)ていない。

Even though I was able to buy clothes cheaply at the first sale of the year, I haven't worn them even once yet.