About
After reading and reflecting on Allocate AWS Costs with Resource Tags 
I asked myself: is there a CLI tool out there, ideally with a great UX, 
that allows me to tag any AWS resource in a uniform manner? 
After some searching around I concluded that the answer is likely "No" 
and so I set out to fill this gap with awsometag.
But, I hear you say, there are AWS Resource Groups (ARG), already! Isn't this re-inventing the wheel?
Nope. And the reason is two-fold: on the one hand, you can consider awsometag as
a sort of enabler for ARGs; you don't have to think about the grouping aspect up-front,
only tag your resources. Second, ARGs are very powerful, supporting more than simple
tags, including CloudFormation stack-based queries and a set of permissions 
along with the ARG. In a sense, if one was to compare awsometag to ARGs, it would be offering functionality equivalent to a subset of the Tag Editor.