In the NFC, we have five teams trying for two remaining playoff spots. Four if you deservedly exclude The New York Inconsistency. (By the way, do you know how many years it's been since the previous Super Bowl champion made the playoffs in the following season? Here's a hint: it's more than one.)

For the record: no 'beep-beep-beep'. The Giants did this to themselves: let no one else save them.

In the AFC, all berths are occupied -- but with the seeds still able to potentially shift, there are two teams in an interesting position. If they lose their game and everything breaks their way, sliding down a slot could give them an easier first matchup. It's the sort of situation where a devious coach might seriously consider throwing today's game to set up next week's win. And there's a third team which, while locked into their own slot, could still improve their position a little by throwing that last game and giving their opponent in it a higher seed. Said opponent? One of the teams which should be thinking about a discrete L to end the regular season.

...this won't end well.

Here's the shorthand:

AFC

Texans: Effectively lock up the #1 with a win: could conceivably give up the bye week with a loss and wins by the Patriots and Broncos.
Ravens: Could go up to the #3 if the Patriots lose and they win. Would rather be the #4.
Broncos: Get the #2 seed with a win. And they have the Chiefs. Merry belated Christmas. Should the Colts ride the ChuckStrong wave, the #1 is within reach.
Patriots: Anywhere from #1 to #4. Suspicions that they might try to slide into the #4 are lurking about.
Colts: Locked into the #5.
Bengals: Can't move from the #6. A loss to the Ravens today sets up a rematch next week.

NFC

Falcons: #1, and still no one believes in them.
Packers: Must beat the Vikings to lock up the bye week. Have a chance to tumble into hosting a wild card game.
Vikings: Must beat the Packers to have a chance at a wild card.
Bears: Must win, root for the Packers, and then go throw up.
49ers: Have the Cardinals. Therefore, at least the #3 and could get the #2 if the Packers lose.
Seahawks: The #5 unless the Cardinals turn into someone else entirely. Someone who can play football.
Cowboys/Redskins: Whoever gets the championship of each other takes the East and the #4 seed. They can both get in if Dallas wins and both the Vikings & Bears lose: in that case, the Redskins are the #6.
Giants: No. Just no.