I went to a Mexican restaurant earlier and got a spark of curiosity from the chip basket. The tortilla chips were delicious (but greasy). When we were done annihilating the chips, the napkin was saturated (completely) with grease. This got me thinking about what kind of material setup it would need. I rushed home and got on Blender. This is what I have so far. I’m planning on creating a whole still scene of the table, margarita and all 
What do you guys think of my greasy napkin so far? And yes, I’m going to add in some crumbs/chip pieces.
I have a slight bump map on the napkin, but maybe it’s too subtle?
Cheers!
Update:
The bump map on the napkin is too high now. Changing soon.