Dear Readers, I once saw these cute covers for infant car seats. I thought to myself "Gee, that would be great for Princess when she gets car sick! Just take one off and put a new one on!"    Then, Surprise! Baby #2 turns out to be Tater Tot, a boy! All my girl stuff I had saved...out the door! Or so I thought!                      THE OLD CAR SEATS!   Until, this Modern Mommy fired up the com…