(I am leaving out the tie possibilities to make it simpler)

NFC
Clinched: Atlanta (playoff spot), Chicago (NFC North and a first-round bye), New Orleans (playoff spot), Philadelphia (NFC East division)

CHICAGO BEARS
Chicago clinches home-field advantage with:

1) CHI win + ATL loss + NO loss

ATLANTA FALCONS
Atlanta clinches NFC South and a first-round bye with:

1) ATL win OR
2) NO loss

Atlanta clinches homefield advantage with:

1) ATL win OR
2) NO loss + CHI loss

NEW ORLEANS SAINTS
New Orleans clinches NFC South and home-field advantage with:

1) NO win + ATL loss

GREEN BAY PACKERS
Green Bay clinches a playoff spot with:

1) GB win OR
2) NYG loss + TB loss

NEW YORK GIANTS
New York Giants clinch a playoff spot with:

1) NYG win + GB loss

TAMPA BAY BUCCANEERS
Tampa Bay clinches a playoff spot with:

1) TB win + NYG loss + GB loss OR

ST. LOUIS RAMS
St. Louis clinches NFC West division:

1) STL win

SEATTLE SEAHAWKS
Seattle clinches NFC West division:

1) SEA win


AFC
Clinched: New England (AFC East division and home-field advantage), N.Y. Jets (playoff spot), Pittsburgh (playoff spot), Baltimore (playoff spot), Kansas City (AFC West division)


PITTSBURGH STEELERS
Pittsburgh clinches AFC North division and a first-round bye:

1) PIT win
2) BAL loss

BALTIMORE RAVENS
Baltimore clinches AFC North division and a first-round bye:

1) BAL win + PIT loss

INDIANAPOLIS COLTS
Indianapolis clinches AFC South division:

1) IND win
2) JAC loss

JACKSONVILLE JAGUARS
Jacksonville clinches AFC South division:

1) JAC win + IND loss