AWS Tips I Wish I'd Known Before I Started
Lots of very useful tips there!There's one that I think could be improved on a little:    Uploads should go direct to S3 (don't store on local filesystem and have another process move to S3 for example). 

You could even use a temporary URL[0,1] and have the user upload directly to S3![0]: http://stackoverflow.com/questions/10044151/how-to-generate-...
[1]: http://docs.aws.amazon.com/AmazonS3/latest/dev/PresignedUrlU...