This is something retail business needs to understand and to deal with:
Using Google and a variety of online shopping sites, Mary researched dresses online, getting a sense for what styles she liked and reading information about what was considered stylish that year. Next, Mary and her friends went to the local department store as a small group, toting along their digital cameras (even though they're banned). They tried on the dresses, taking pictures of each other in the ones that fit. Upon returning home, Mary uploaded the photos to her Facebook and asked her broader group of friends to comment on which they liked the best. Based on this feedback, she decided which dress to purchase, but didn't tell anyone because she wanted her choice to be a surprise. Rather than returning to the store, Mary purchased the same dress online at a cheaper price based on the information on the tag that she had written down when she initially saw the dress. She went for the cheaper option because her mother had given her a set budget for homecoming shopping; this allowed her to spend the rest on accessories.
Mary's mother was completely flabbergasted by the way in which her daughter moved seamlessly between the digital and physical worlds to consume clothing.