Using money to snort with

So... I've been using higher denominations for awhile to snort (I'm sure purchasing a specific snorting tool would be badass or simply a straw will do), but what is the main concern with money?

I understand the not sharing snorting d/t Hep, etc

I understand money can/is dirty, but the bacteria or viruses that could possibly have been on it are likely dead after a period of time. So if I sit a bill out for a couple days, any bacteria/viral components are likely dead. Higher denominations probably $50? maube $100 next arent circulated that much, those $1,5,10,20's tho are passed around quite a bit.

So basically, altough cliche to use bank notes, ones that you've had for several days should be as clean as whatever you may find right?