Just a couple/three pix of my greenhouse. 8 x 8 x 8 with a small heater on a timer and thermostat and a single mister.



The whole things was about $700, most of which was the double-wall plastic covering/ The rest was 2 x 2 and 2 x 3 wood strips, 3/4 Trex for the bottom where it sits on the soil, some corrugated plastic for the shelves, and some screws. Whole thing took 3/4 of a day to build.
For the winter, I have black plastic on the top and south side to help provide heat. In the winter I turn the mister on occasionally to add humidity. In the summer it is on all day to reduce temps and maintain humidity.
You can see some things rooting using my "New Style" bag technique, and somethings done with multiple cuttings in one pot. Some are done using the new split cup technique. There are a few things already potted up and getting adjusted before going outside. About 50 one gallon pots went outside under the cherimoya tree to acclimate this weekend on their way to full sun.
The second pix also has some strawberry boxes, lined with paper towel, and then filled with potting mix, with one node cuttings layed horizontal.