Does anyone use a mouse with their Air?

I typically use my MBA with my Thunderbolt display, wireless keyboard and Magic Mouse

On the road, I often use my Logitech M305 mouse when I conduct training (with a projector)

I rarely use my MBA by itself
But I do love the trackpad

I rarely use a trackpad, as a mouse is much faster and more accurate for most functions. There are quite a few existing threads where this topic has been discussed at length, including these:

Do You Use an External Mouse With Your MBP or Using Only the Trackpad?
Trackpad, mouse or both?
Magic Mouse or Magic Trackpad

Only when I travel. If I'm just sitting on the couch around the house, then no.

For gaming only really. No need for it even in photoshop (this is my first mac, and I'm damn impressed), although occasionally I'll still pull it out. This is the one i use.
here

I carry a MS arc touch mouse with me for extended stationary work outside my home. But in most cases, the trackpad suffices. Most cases.

I have the mouse and the keyboard. I use them when I have it plugged into my big monitor. When it's portable, I sometimes use the mouse, but usually use the trackpad. I've always disliked trackpads on laptops, but this thing is unbelievably amazing.