Using AWS always remember about your project's network traffic - it is not free if it goes outside AWS (to internet).
Had an experience with two big web sites which used EC2 instances for about 300-400 $/month and payed for traffic same amount in addition at least. When they got some re-indexing request from Google Bot or SEO optimization issues then they got serious traffic hit and payed double traffic that months.
So it is good idea when developing for AWS (and everywhere else too actually) keep in mind volume of data you application/site sends to client's browser.
Using AWS always remember about your project's network traffic - it is not free if it goes outside AWS (to internet).
Had an experience with two big web sites which used EC2 instances for about 300-400 $/month and payed for traffic same amount in addition at least. When they got some re-indexing request from Google Bot or SEO optimization issues then they got serious traffic hit and payed double traffic that months.
So it is good idea when developing for AWS (and everywhere else too actually) keep in mind volume of data you application/site sends to client's browser.
Yes, you are right. Its shared pain among most of the AWS customers unfortunately.
Added this, Thanks!