Unexpected New Bench Territory

I wasn't planning anything special for yesterday's workout except to go a little heavy on bench, but afterwards I realized that I definitely moved into new bench territory. My previous best bench was 155 x 8, and I beat it by a good margin:

95 x 6
135 x 6
165 x 7
155 x 7
145 x 8

Notice I used drop sets for a change.

The rest of the workout included:

• One arm DB Rows (3 x 8 with a 75# db)
• Standing Barbell Press (10 reps x 75, 70, 65)
  supersetted with
  
• Standing Barbell Curls (10 reps x 70, 65, 65)
  
• Dips supersetted with Chins (just one set each)