The holiday season is undoubtedly the biggest time of consumer spending in the entire year. If you play your marketing cards right, you're likely to experience an influx of new customers buying from you for the first time. For all the revenue the holiday season creates, those new customers are the true prize that can help your business grow - if you can convince them to stick around. Plenty of articles will tell you how to optimize your marketing to get as many customers as possible during the holidays; today we're looking at what you can do AFTER the season to retain their business and further build your customer base.