Spinach (x3) Green Juice

I was really craving a green, green juice this morning and I had about 4 bunches of spinach in the fridge (they were on sale for $0.98 a bunch at the local grocery store!).

3 bunches of spinach (stems on, baby! You can cut the stems off if it has too bitter of a taste for you)
4 stalks of celery
1 cucumber
2 grapefruit
1 1/2 limes (I juice the peels but you don't have to)
1 small Bartlett pear
1 small mango
1 large knob of ginger

Pretty tasty, if I do say so myself.