The Coolest Nail Trends for Fall 2018. Nail art ideas and color trends straight from the fall 2018 runways. On National Nail Polish Day, a grand winner will receive 100 Essie shades. Essie won’t be launching a collection to herald the day, rather encouraging users to recall a favorite shade — perhaps one th. ALSO READ | Cannes 2018: Sonam Kapoor channels her ‘bridal glow’ in a stunning Ralph and…