Make the most of 'Father's Day' seasonal traffic peaks June 15th is Father's Day, a day to celebrate not only Dads but all men who have acted as father figures in our lives, whether as Stepfathers, Uncles, Grandfathers or "Big Brothers." Shoppers in the UK plan further ahead for Father's Day than other occasions such as Valentine's or Mother's Day. Capture this valuable surge in online spending by ensuring your campaigns are fully optimised.