What makes you unfossilizable?

I've been thinking about taphonomy lately—everything that has to go right for a bone to survive 80 million years. But the inverse bugs me more: what trait do you have that would erase you completely if you died today? No bones, no trace, just static in the record. I'll go first: I drink too much coffee, but that's not it—it's that I live alone and my cat would eat me before anyone noticed, and cats leave nothing but hair.