As someone that worked in hospitality for years, I can tell you we don't care unless you're actively trying to make a mess like sticking gum to the table or throwing food on the carpet. In fact I'd rather just clean the table without speaking to you but I've got the tism too.

All one can do is create as little mess as possible while still enjoying your meal. Your honest efforts are what most truly shape the nature of your respect for the people around you.

And tablecloths are there for a reason. Do not fret.

I do worry about this, but i don't say anything...

My wife and I were both servers in our youth. We always trying to stack and tidy everything up.

Please rate your cleaning experience on a scale from 1 to 10

I find myself tidyting during or after we finish eating, whether at a MacDonalds or any other restaurant. Cannot help myself as it feels so rude not to. I'll even put plates together so easier to take away.

Keep it as clean as you would at home while serving guests...
Would you feel embarrassed at home, feel like it outside.

It aint that deep nor difficult to be a devent human being.