If you don’t know what are planning poker cards are, it is one of the nice ways used by Agile teams to estimate the effort of a user story, as the whole team of developers are involved in estimating the effort, not only managers.

If that estimation is done manually, you can have funny cases like these, so some would recommend doing it using cards. I personally think that a nice deck of regular poker cards would do the job, but they might not be as interesting as the Agile version.

You can also play the planning game online here which is brought to you by agile consultants and trainers at Mountain Goat Software.