Many people buy offline and then do in-store alterations. If this data were captured at the store level it could be presented when customers purchase/browse online. Additionally, integrating offline purchase history will allow browsers to see a list of products they have already bought; both online and offline. This is especially useful when someone is trying to buy a shirt and is not sure if they already have a similar color at home. This feature could also be used to make online accessory recommendations for clothes that were bought offline.