To find out what stairs you can currently challenge someone in, first go to the Main Stairs Page, then click on "Show your stairs only" link. The ones in BOLD are ones you can make a challenge in.
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Fencer: Great link Fencer ... never seen it before. Can I suggest a further line at the bottom which would be a total (yeah I know, get the calculator and add them up yourself, but I am a lazy sod :)
(hide) Keep your Inbox clean by Archiving important messages and regularly using the Delete All Messages in your Inbox option. (pauloaguia) (show all tips)