A PVC pipe cutter is the quiet hero of weekend makers. With a squeeze and a click, it turns stiff plumbing leftovers into ribs for a palm-sized greenhouse that fits on a balcony railing. Start by slicing four eight-inch lengths for the uprights, then nick off two shorter pieces to form a peaked roof. The cutter’s razor wheel leaves glass-smooth ends, so there are no burrs to snag clear film later.
Next, dry-fit the frame on a flat table; the lightweight tubes feel like giant drinking straws in your hand, inviting playful angles. When everything looks square, press the joints together without glue—friction is enough for a structure this small. Wrap the skeleton with a leftover freezer bag or sheet of painter’s plastic, pulling it taut like gift-wrap. A few dots of hot glue along the spine lock the film in place and create a transparent skin that traps morning sun.
Slide a seed tray underneath and the internal thermometer climbs within minutes, coaxing basil and peppers into early germination while frost still lingers outside. At dusk, lift the whole cabin indoors; its featherweight frame tucks under a kitchen chair until tomorrow. Neighbors will ask where you bought such a cute conservatory; they never guess the only tool required was a ten-dollar cutter and a handful of scraps.