Yup. It's a sale! You can go to Etsy and search for Yart to see the tons of shops that are having a Yart Sale at this time.
The word Yart comes from this simple math Yard+Art= Yart.
Etsy also has an interesting article on the history of the Yart sale that you can read.
I am offering $5 off selected items in my shop. So you should totally go check it out!