If you can't find wheat berries at your health food store, try Sun Organic Farm in California. I'm a long-time satisfied customer of theirs. Sun Organic sells Hard Red Winter Wheat Berries for sprouting for $1.95 per pound. Three pounds are just $2.85. Make sure you specify you want the seeds for sprouting.
Sun Organic's # is 1-888-269-9888. Their website is: http://www.sunorganic.com
If you don't want to take the time to juice the wheatgrass, you can always put a swatch of it in your mouth and chew it for 10 minutes. It's great exercise for your gums, and it saves cleaning the juicing machine.
See my article about growing sprouts, so you can grow your own wheatgrass without dirt or compost.
Last thought: If you're unable to grow your own or by it locally, Pines makes an excellent wheatgrass powder, as well as barley grass.
What I do , to grow my own Wheatgrass:
My rule of thumb is to gently pour the wheatgrass or barleygrass seeds over the top of the tray until it is covered. You want one layer of seeds, side by side. Each of them will grow into a beautiful green blade of grass. As I type this, a tray of wheatgrass sits in the sunshine of my living room window.
I'm sure you know that you need to soak the seeds for 8 hours before you put them on the tray. Soak them in pure water, not tap water.
I've been growing my own wheatgrass and barleygrass for about 10 years. I used to juice it, but got tired of cleaning my Green Life Juicer. So about 3 years ago, I began cutting the wheatgrass with a scissors -- just enought for one mouthful -- and chewing it for 10 or 15 minutes.
I still get most or all of the juice. But my gums and teeth also get some significant exercise. You can do all kinds of weight-training for your bodily muscles, but how do you exercise your gums? I do it by chewing wheatgrass! I give this technique credit for stopping the gum-recession that was an irritating problem
for me until recent years. I also think it helps to have all the wonderful nutrients in wheatgrass right there in my mouth for 15 minutes. I tell my gums to use that healing liquid to nurture, heal, harmonize, and balance themselves; to detoxify any old root canals or cavitations. And my gums seem to listen to me.
You might want to give this chewing technique a try. At the very least, you can use it on days when there just isn't time to use and clean the juicing machine.
Good luck with your grass growing! I'm going to stop typing now, get my scissors, and enjoy the day's wheatgrass. My gums can't wait!