You only need the tiniest bit - I've been using it for two weeks on my arms and legs and you can see I've hardly made a dent (sorry for my fingermarks). The "cream" spreads into a light lotion when it's applied to the skin (see picture below), which is why a very, very small amount is sufficient.
The expiry date is February 2014. I use this at night. The smell is so soothing, especially before I fall asleep, and lingers faintly on the skin even in the morning. The lotion was named after Rolling Stones' Sympathy For The Devil!
Sympathy For The Skin is as old as Lush itself. I would keep raving about it, but it does contain parabens :( Will I re-purchase? If they remove the parabens, definitely. If not, I'll wait till it gets over, go to Lush and then decide on the spur of the moment.