Lilly Pulitzer After The Party Sale By the time you read this post early tomorrow morning the Lilly Pulitzer After Party Sale will be in full swing! The Lilly Pulitzer After Party Sale is the end all be all – everyone must come and see – event of the year. If it is anything like the previous Lilly Pulitzer sale (where 90,000 people were waiting in a digital “line”) you will need to set your alarm for 8:00 am on September 10th if you want to take advantage of the sale.