reuse-ssh-agent

This is my take on the idea described by elertric monk:

Use an existing ssh-agent when there is one or start a new one.

Setup:

Get the file
Change “<user name>” to your user name.
mkdir ~/.ssh/agent
chmod 700 ~/.ssh/agent
Just keep the file and source it when you feel like it
Or insert it into your .tchrc
Then just ssh-add your keys once per boot.