We're not good with house plants. We're not actually all that good with any plants, other than a few that seem to bloom profusely anyway, but we have a particularly bad record with indoor plants.
So when Richard brought a poinsettia home from the office on Christmas Eve, we thought it would be a nice extra decoration for the Christmas season, and that by mid-January (at the latest) it would have passed on to the great greenhouse in the sky.
Two-and-a-half months in our house, and it's still thriving:
Possibly the secret is that I neglect it almost completely. About once a fortnight I see that the leaves are looking a little droopy, so I then pour some water in. And that's it - other than washing most of the glitter off when we took down the decorations on January 5th. It's sitting on a small table by a window where we put it at first (not having anywhere else appropriate) and apparently hit on the ideal position.