What do you put in your green smoothies?

Today my son's lemon balm plants were looking so healthy and fresh and I threw in a handful, and it was so freakin' good, especially with the banana flavor. I'm going to use more lemon balm.

I usually take the "throw in whatever I have" approach, I get whatever looks great at the produce stand or whatever is on sale at the grocery store, and I buy frozen fruit in bulk, but I like new ideas so they don't get boring.

My recipe today was (served 3 in big 16 oz tumblers):

1 cup pomegranite cranberry juice

2 handful's of raw kale

1/2 bag of raw spinach

1 banana

about 3 or 4 stevia leaves (garden fresh)

handful of lemon balm leaves (garden fresh)

3 big spoonfuls of mixed frozen fruit (peaches, strawberries & pineapple).

It was a little thick and I ran out of pomegranite juice so I threw in a splash of orange juice to thin it out.

Do you make green smoothies and what do you put into it?

Have you ever used carrots and how to you add them without killing your blender?

(I have a decent blender, 600 watts, but it's not exactly "industrial strength" and I don't want to kill it)