Install and configure this very useful plug-in (quick and easy): Quicktext.
Hi [[TO=firstname]], [[CURSOR]] Thank you, Jerome
I have a local “Archive” folder where I put messages that I don't need anymore (I've worked on them, or I won't work on them). So you have just a few messages in your inbox at the time. It's clean, tidy, you'll feel more in control, and you'll actually work better. To move quickly a message to the Archive folder, use this handy extension:
It's also here.
In Message -> set QM options, define your destination folder. Then to move a message just press Ctrl-0!