Proposal: Reactionary Productivity.

Like "Productivity through avoidance", meaning instead of forcing yourself to do the one task you avoid, you embrace this avoidance to get other tasks done. 

So why not instead of trying to avoid reactionary workflow, take control of the reactionary workflow? Let's say by automatic emails on which you react, you work on your tasks and use your reactionary nature to get things done.

Anyone has ideas or experience with this kind of productivity?

A better email client.

Why are there no more improvements? For example: I have many email accounts but tend to write to each person from a specific email account, so it bugs me every time I have to choose the account to send the email from, if I already send an email to this person, why can't the email client use the same account as last time? It's a simple lookup, but would make a great product!

Where else can email clients or other daily used software improve?