Adding key to apt so ppa packages can be authenticated

When you add Third-Party Software Sources to Ubuntu, you will likely want to add those sources' shared keys to the apt so that when you update your packages a warning stating that some packages cannot be authenticated can be avoided. I get tired of it coming up. So, In my case I added

deb http://ppa.launchpad.net/keepassx/ppa/ubuntu jaunty main
deb-src http://ppa.launchpad.net/keepassx/ppa/ubuntu jaunty main

as sources.

Then I added the corresponding key to apt with this command:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 095F1873

095F1873 is part of the PPA's PGP signing key (1024R/095F1873)