Funcom Points (FCP)
These are points which accumulate on your Customer Account. I will refer to these as FCP. All game accounts associated with the customer account share the same FCP. If you spend FCP to buy something on a single character, or a specific game account, the customer accounts total FCP amount is reduced by the specified amount. FCP can be spent in the item store, or on https://register.funcom.com/.
You get FCP for every game account subscription. (free subscriptions excluded) As of 17th November, 2010, you get 60 points for 1 month, 300 points for 3 months, 600 points for 6 months and 1440 points for 12 months. (source) If you have three 12month subscriptions, you will gain 3*1440=4320 FCP per year.
You can also buy FCP for cash. Pricing information is available on https://register.funcom.com/
If you merge two customer accounts, the total number of available FCP will be the combined FCP of both accounts.
Item Store special items: As of 3rd December, 2010, Portable GMS (Permanent) & Portable Bank (Permanent) is a once-per-game-account purchase. Once bought, the respective item is free for all current & future characters on that game account. (source)