Comment on Folders for tiles. doing that would defeat the main purpose of a tile which is "live" to display current information. Putting Calendar - Mail - People - Skype I a folder would mean I would have to open the folder to get current info. The way I organize is simply to remove Apps that do not have live tiles from the Start (unpin). simply drop back to all Apps to access them.
PK, here's the big question, How many tablets to you own?