Building an accumulation of useful personal information using CollectionsByWayOfCategorization ( Forfixed with "CollectBy" instead of "Category" )
* Here are some starters:

* DataOriented
** CollectByCategories
** CollectByCompany (Merchant, Manufacturer, Supplier)
** CollectByDate
** CollectByDiscipline
** CollectByKeyWord
** CollectByLanguage
** CollectByLocale
** CollectByPetTechnique - PetTechnique
** CollectByTopic
** CollectByUrl
** CollectByVolumes ( like Encyclopedia Volumes -> pdf documents (less than 9999 pages in document) )  )
* InformationOriented:
** CollectByContext
** CollectByEndemeSet
** CollectByQuery
** CollectByRoadmap - RoadMap
** CollectBySearch

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CategoryCollections