1. Exposing our knees at all times.
One day our knees will be warm again. One day.
2. Making our lips as plump as we possibly can.
We have Kylie Jenner to thank for this trend.
3. Mermaid hair.
View this photo on Instagram
It looks amazing but it's not gonna last forever.
4. Contouring.
At some point we'll all go back to embracing our naturally squishy-looking faces.
5. Crop tops.

Be patient: One day your belly will be toasty-warm again.
6. Or even worse, crop jumpers.

It's all about exposing an arbitrary part of your body in 2017.
7. Everyone owning this exact backpack.

The Fjallraven backpack is to 2017 what the Billabong backpack was to 2007.
8. Otherwise nice T-shirts with random slogans on the front of them.

We are all looking forward the day we'll be able to buy plain clothes again.
9. Making our eyebrows as large as we possibly can.

In the '00s we liked our eyebrows one hair thick. Now we like them three inches thick.
10. Chokers.

In the '00s, the only choker worth wearing was that fake tattoo one. In 2017, tying a piece of string around your neck will do.
11. False eyelashes.

Caking our eyelashes in five layers of mascara is no longer considered the height of glamour, but glueing fake eyelashes on top of our real ones is.
12. Applying our foundation with unconventional tools – for example, condoms.

We'll just use our hands again one day.
13. Ombre hair.
View this photo on Instagram
It looks cool now, but it can't last forever.
14. Attaching pink pompoms to everything.
It was cool when Clueless came out and it's cool again now.
15. Wearing incredibly big, round glasses even if they don't match your prescription.

Nothing is as 2017 as wearing glasses you don't need.
16. Getting this exact haircut.

Sooooo 2017.
17. Almond-shaped fake nails that make it look like we're permanently pointing.

Gone are the days of square-tipped French manicures.
18. Having the biggest hair possible at all times.

Flat hair is considered very drab in 2017.
19. Drawing around your lips with incredibly thick lip liner.

Natural lips are so passé.
20. Only being able to buy 100% shapeless clothing.

This is the comfiest trend, but it can't last forever.
21. And literally everything being marble, rose gold, or ~millennial pink~.
We'll discover other materials and colours in the future.