Experimented with my excess one gallon milk jugs and tried some propagating. Put plenty of drainage holes in the bottom, left the cap on, but did poke a hole near the top for a bit of ventilation. I used an awl. Using a mix of sand, peat moss, and vermiculite, I filled each container to about 4" in depth. Rounded up my cuttings, dipped them in my rooting gel, poked holes in the rooting soil mix spaced about 1" apart, and inserted the cuttings. After misting the plants and soil, I inserted a label & taped up the jug. Placed them all in the shade and now 5 weeks later here they are, still doing great.
By the way, edited to mention that I uncapped the containers to mist the plants every few days.