I love Philosophy stuff, too!
I hardly ever find anything cheap, but drugstore.com sometimes does a gift with purchase. If you sign up for emails on philosophy's website, you get a gift with purchase for your birthday. QVC and Sephora have some good values on sets, too.
I love the graces - amazing, pure, and eternal are my favorites. I get lots of compliments on how good I smell.
As far as skincare, I use the purity cleanser, the microdelivery peel, the oxygen peel, and the microdelivery exfoliating wash. I use the on a clear day retinol for acne-prone skin every night - has made a big difference in my skin texture.