Looks like I'll be modding this car ass backwards to my typical routine. Normally, I'd do the performance stuff first, but since it's still winter, I decided to add a couple of aesthetic mods to start. No biggies yet, but more are coming, such as the addition of the SS coupe rear extension (lip).
Some pics.
An armrest, can you believe it, it's not even an option but can be bought as a kit from your local GM dealer.
GM Accessories all weather floor mats (Yeh, I know, tacky.

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An interior dome light, Cobalts with sunroofs only come with lights in the bottom of the rear view mirror, absolutely useless for rear passengers. A dome light from a non sunroof Cobalt, can be modified (housing), wired, and installed with Cobalts with sunroofs.
Teaser pic, Touring style rear spoiler, from the GM accessories catalogue.
And to compare, here's a pic of the car with the original rear spoiler.