I love have always loved May Day and the idea of dancing around a Maypole or placing a basket of fresh flowers on the front door to welcome Spring.
I learned about another May Day tradition the last time I was in Paris. On the first of May, the tradition is to give a bouquet of lily of the valley to friends and family for good luck.
May 1st is the only day that anyone can sell lily of the valley on the streets of Paris without taxation. These heavenly white flowers were available everywhere! Throughout the day, I saw men, women and children carrying little bunches of muguet du bois around the city. It was just charming.