Super-Elastic Flattering Clothing Sizes

I shop for clothes about as often as I spot unicorns, so it was rather a fluke this afternoon to enter Ross' Clothing Store looking for bargains. I went for the knit shirts.

Normally, I'm a 'Large', but for some reason, with these knit shirts, I'm a 'Medium'. I don't think I shrank to fit the shirt - I think the shirt expanded to suit me.

On the way back, I stopped for a bite at McDonald's (among those ultimately to blame....)