The hairdresser was so nice/kind and pleasant that I chatted with her for almost the wholentire time/most of the appointment. The hairdresser was so nice/kind and pleasant that I chatted with her for almost the entire time/most of the appointment.

You can use synonyms of nice like kind and pleasant. I offered some suggestions to rephrase the end of a sentencd

I got my hair cut and went shopping yesterday. I got my hair cut and went shopping yesterday

Just a quick note, titles don't usually end with periods

Yesterday was my day off, so I went to the salon and had my hair cut./Yesterday, I took a day off, so I went to the salon to get my haircut. Yesterday was my day off, so I went to the salon and had my hair cut./Yesterday, I took a day off, so I went to the salon to get my haircut.

Your sentence is grammatically correct, but I offered a suggestion to use a more active voice at the beginning of a sentence and to make it more concise.

I got bangs and I absolutely loved how it turned out. I got bangs and I absolutely love how it turned out.

I think because it's so recent, you can say "love" instead of "loved"

It was a bit more crowded for a weekday than I expected for a weekday. It was a bit more crowded than I expected for a weekday.

IFor a weekday, it was a bit more crowded for a weekday than I expected. For a weekday, it was a bit more crowded than I expected.

Your sentence is 100% correct! I'm suggesting a small way to make it sound more natural

I bought a lipstick, some pairs of socks(,) and a pair of handcrafted flower earrings. I bought a lipstick, some pairs of socks(,) and a pair of handcrafted flower earrings.

You can use the Oxford comma, which I put in parentheses. This is generally used when you're listing multiple things. But you don't have to use this type of comma at all situations and your sentence is right.

I bought a lipstick, some pairs of socks and a pair of handcrafted flower earrings. I bought lipstick, some pairs of socks and a pair of handcrafted flower earrings.

I bought a lipstick, somea few pairs of socks, and a pair of handcrafted flower earrings. I bought a lipstick, a few pairs of socks, and a pair of handcrafted flower earrings.

I hadn’t/didn't intended to get the earrings. I hadn’t/didn't intended to get the earrings.

It was a complete impulse buyn impulsive buy./I impulsively bought the earrings. It was an impulsive buy./I impulsively bought the earrings.

I gave two suggestions to help your sentence sound more natural.

It was a complete impulse buy. It was a complete impulse buy.

Another way to say it: "It was an absolute impulse buy."