How to manage multiple gmail accounts?

Manage multiple gmail accounts? But why?

Some people have multiple Gmail accounts and they find it quite difficult to switch between them. Google solved part of this problem by the “Sign into another account” (under settings -> Switch account -> sign into another account) feature which they introduced some time back. But the problem with that is you have to do it each time you login to a new computer or each time you restart your system or if your session gets expired.

There is a better way of managing multiple gmail accounts.  Google calls it gmail delegation. It was created for top executives delegating the “reading your emails and responding to less important ones”  work to a secretary.  But a common man like you and me can also benefit from it.