Wow.... Thank you for this article,
Susieserb... It was food for thought...
My parents always instilled their children a basic notion: "Things that stay on the floor cannot be placed on clean surfaces - be it a teatable, a kitchen counter or a bed... There was no exception...
On top of this upbringing, I did a BSc in Microbiology and Genetics in the UK, so I have always been very aware of microbial contamination...
Once I got a pretty nice (though resistant) Moschino handbag peed by my 4-year old daughter while I was struggling to hold her over the WC instead of letting her sit on it in a public loo and holding my purse instead of dropping it...

YOu'll be happy to know that wet baby towels can do miracles when used immediately...
I have even held bags with my mouth to prevent them from touching the floor...

And I will never place them on the floor when I am dining out or clubbing (as if I did!)
Susieserb, I am sure there must be portable hooks in the US (my Mother has one for restaurant tables)... if not, get someone to invent them and get rich...
