Tidus's idea is perfect, I do a little something different
How I handle this:
First off this doesn't work if you're completely unattended (AFK farming). I'm assuming you're playing a character and a bot is playing with you, both in-party.
- In your loot method, after you're done looting a corpse, ignore it.
- Set a party command "reset loot" so that it wipes your ignore list
When you type "reset loot" in party, it'll wipe the ignore list and begin looting corpses again.