The South Pole Telescope blog. Among other tidbits I learned, there is no decaf coffee at the South Pole:

In the galley, there are two coffee spigots. But instead of the usual "regular" and "decaf", they're labeled "regular" and "high-octane", made extra strong. This suits me just fine. It also suits a station that operates 24 hours of the day, where people often find themselves shifting their schedule back and forth from days to nights or the other way around.

(Via MeFi.)