Katrina: In Praise Of Oxford Comma

Katrina: I LOVE the Oxford comma! I spend a lot of my day adding them to documents written by the rest of the office staff.  … An Oxford comma is the comma between the last two items in a series of three or more items. It comes right before the conjunction. For example: I went to the store to buy butter, eggs, bread, and shotgun shells. Anti-comma-ites (heh) would prefer it to read: I went to the store to buy butter, eggs, bread and shotgun shells. Both sides argue that their use/non-use of the comma makes communication clearer, and there are examples to support both positions. But my position is the right one, clearly.

Question: Do you use the Oxford comma?