Uhh... I got drunk and trashed a temple. How do I pick up the mess?

Solution 1:

You've probably missed something (I missed the note on the ground).

To have it pointed out to you, open your quest menu (J on PC) and press E on the quest that you just received (A Night to Remember), and a little arrow will appear over any items you missed both in world and on your compass.

Solution 2:

It's probably the repair supplies note. It blends in almost perfectly with the light on the ground, though I did use clairvoyance to find it myself, if you walk in the front door of the temple and look on the floor to the right of the raised sancrum in front of the shrine, it should be on the floor. That's where it was for me