Many browser tabs are useful because Firefox allows for searching their titles using the address bar. Similarly, keeping all emails in the Inbox starts looking

Many browser tabs are useful because Firefox allows for searching their titles using the address bar. Similarly, keeping all emails in the Inbox starts looking useful once you have a nice to use filtering client. I suppose holding a flat file structure will start making sense when a good filesystem-wide metadata search becomes available. Sometimes I wish WinFS didn't die. That future could have meant the end of crappy ad-hoc directory structures.