Sometimes when working on a project I'll have a few tabs open. I know I can save all the files in one spot and open them when needed but the ability to recall a set of tabs to open when needed would be great. That way I can shut down a full project, start a new one and then come back to the previous tabs when needed.
I'm thinking under File adding a prompt to "Save Session" > Name the session.
To open the session have it under File > Open Session
Sometimes I'll leave illustrator open with way to many tabs because of how many projects I'm working on at times. Having this feature will help get rid of the clutter a bit.