Spider plant. People who know more about this sort of thing than I do swear that these are virtually idiot-proof. Very forgiving if you neglect them for a bit, they do well in pots or on hangers, and aren't picky about sunlight.
Good luck.
Boru
‘But it does me no injury for my neighbour to say there are twenty gods or no gods. It neither picks my pocket nor breaks my leg.’ - Thomas Jefferson