Yes, I hopped on the overnight oats bandwagon! They are so easy and make getting breakfast ready in the mornings so quick! If you haven't tried them, you should. Do you need to have a jar? No. I mix mine up in a tupperware container. It's not as picture-worthy, but it works just fine. I have to admit upfront that I have someone in my house that won't eat them...my husband. Apparently he thinks that oatmeal should be cooked and always eaten hot. The rest of us love this recipe. I have tried other recipes that haven't gone over so well. So my advice is to find a few recipes, try them out and keep the ones you like. The ease of these recipes make them worth experimenting with. Don't forget to click on the title of the post to get the recipe!