There are those products and services that get bought on a weekly or daily basis. Food, groceries, and transportation. Routine, common, driven by immediate need. Then some are often not purchased until something terrible happens. Home security systems are an example of that. Another might be an all-encompassing repository for your passwords, subscription services, essential documents, mortgage information, and credit cards. Anything anybody would need to tie up loose ends with your "estate," should you expire.