I work with what I have often times. I currently have two containers for my notions. That way I can grab the notions and switch project bags at a moment's notice. Grab new project bag containing the wip, place notions container in bag. Go to knit meeting.
My favorite container is an Altoids tin. I can fit sticky notes, safety pins, point protectors, row counter, tape measure, and scissors along with a business card sized inspirational quote. I even have a bit more room for more stitch markers, safety pins, rubber bands, tapestry needle etc. It's my economy sized notions container.
My second notions holder is an old make up case. About the size of a coin purse. I can fit everything in the picture in it, plus sticky notes, point protectors, and a small pen/pencil.
What do you carry? What is your system? How small can you go?