My Oster blender has an additional container for smoothies and it works wonderfully. I filled it about half full with soy milk but you can use the liquid of your choice. I add 1/2 a banana, sliced. Then I put in some leftover beets, some leftover crushed pineapple, and two really big handfuls, tightly packed, of raw collard greens. I buy them in a large bag already washed and torn into small pieces and they last me at least a week. Raw collard greens are the best greens you can eat for your eyes and I can honestly say my vision has improved in only two weeks of making these smoothies. I vary the ingredients but the banana and collards are always included as is the soy milk.
This is a closeup before my first sip.
I ordered these stainless straws with an adjustable sipper and cleaning brush recently because a standard straw is too short for my Oster container. They are made by OXO (see link HERE) and there is a carrying case for travel. These are life changing and I love them. What do you think of My Breakfast of Champions? I was having an awful time eating my greens in other ways so this has solved my problem completely. If I somehow miss it at breakfast time, I will have it for my dinner. I add berries too, just didn't this morning. I always have frozen blueberries on hand. Each one has been delicious and the greens don't impart much of a taste but the banana does! HAVE A GREAT WEEKEND.