But another lesson we'd filed away is that of this season's It colour.
Over the course of the month, bloggers, celebrities and models ditched the millennial pink and instead, stepped out wearing differing shades of yellow.
The runway cemented the trend with the likes of Balenciaga and Calvin Klein including bright yellow in their new collections.
Now that it's summer, you'll start to notice yellow popping up all over your Instagram grid.
Get ahead of the crowd by filing away the monochrome and introducing some colour. See how to style the trend below.
This article originally appeared on marie claire.