I just wanted to share this video with everyone. I had no idea how quite accurate this is.
www.lisaeldridge.com/video/25670/how-to-find-the-right-shade-of-foundation/#.U1Bvn_ldVtY
I just found out about Lisa Eldridge on MN. She is definitely the foundation Goddess. Yes, I have also stumbled on that path of finding the perfect foundation but not quite getting there. But this video is brilliant ! 
I just wanted to share with everyone here.
Have you also found your right shade ?
What is your brand or shade ?