Blood, Sweat, and Smears (S04E07)

S04E01 Once More Unto the Bleach S04E02 Another One Wipes the Dust S04E03 War and Grease S04E04 Sweeping With the Enemy S04E05 A Time to Spill S04E06 The Maid Who Knew Too Much S04E07 Blood, Sweat, and Smears S04E08 I Saw The Shine S04E09 Much Ado About Buffing S04E10 Grime and Punishment