Ubuntu Version Where Are You?

Being a more recent Ubuntu user I can never remember which version I installed, it was much easier in the Debain days but adapt, improvise and overcome is the motto I try to live by. There are two options which I've included below, if someoone knows of more please pass them along.

Option 1:

user@machine~> cat /etc/issue
Ubuntu 7.04 \n \l

Option 2:

user@machine~> lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 7.04
Release: 7.04
Codename: feisty