Discovering and categorizing individual purchases associated with a user is described. Exemplary steps include acquiring access to a repository; identifying, from within the repository, an electronic receipt; identifying, from within the electronic receipt, at least one line item; acquiring a set of user information; predicting, based at least in part on the set of user information, whether the line item falls within a certain category; and storing, if the line item falls within the certain category, the line item such that information associated with the line item is retrievable.