When to Avoid Using A.T.M.’s
bucks.blogs.nytimes.com
bucks.blogs.nytimes.com
"...some writers still pluralize initialisms in this way. Some style guides continue to require such apostrophes - perhaps partly to make it clear that the lower case s is only for pluralization and would not appear in the singular form of the word, for some acronyms and abbreviations do include lowercase letters." http://en.wikipedia.org/wiki/Acronym_and_initialism#Represen...
Only thing I buy regularly with cash is lunch in smaller restaurants.
I also like that my 'balance' visibly goes down when I use cash.
However, I also don't spend often enough that I need to go to an ATM more than perhaps once or twice a month.