How much power do the "little" peripherals consume?

[pctwo]

In these forums, we discuss a lot aboutr how much power components inside the case use -- cpu, video, HD. But I'm looking at my setup and I see all these little peripherals -- DSL modem, old 14.4 modem (which I still use for faxing), USB scanner (no power off switch), all of which I never bother to turn off. They use like 12V and have either a power brick or an adapter. If you add them up, how much wattage do they use?