Pattern Review is currently having a fitted shirt contest which I joined.
I decided to use New Look which I have used 3 times. It is a TNT pattern which I have made a couple of usual alterations to it that I usually make -- the narrow shoulder adjustment and remove some of the sleeve cap ease. This narrow shoulder adjustment on this pattern is a little different since the pattern has a yoke. You can see a tutorial for narrow shoulder adjustment here.
I also have learned to measure and remove the extra sleeve cap ease from the Big 4 patterns. It is my understanding that you should only have about 1 1/2 inch ease in the sleevecap. It makes it so much easier to ease in the sleeves. I removed about 3/4 inch from the sleeve cap. I also shortened the sleeves as well as adding a tab and button to the sleeves to roll the sleeves up for summer.
I found this charcoal gray chambray at Walmart on clearance and thought it would make a good basic wardrobe addition. I also knew I had already made a blue chambray shirt with this same pattern for a sew along on a sewing group.
I failed to realize how much the 2 shirts would look the same until I was in the process of sewing. The difference is quite obvious when side by side though. I can see this shirt paired with white capris or white shorts this summer.