Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to plan a greenhouse [title] Consider using salvage materials if you intend to make a larger greenhouse. [step] You can use these materials in designing and planning for a low cost budget greenhouse. This will also help minimize the expenses of the other supplies and materials needed.

Ending1: Gather scrap materials like cardboard boxes, ladders, poles, and metal hardware items. Look for items that can hold large amounts of water and oxygen. Ending2: [title] Seek better visual measurements for the greenhouse. [step] As with many conventional greenhouse projects, you may need to look for more accurate measurements around the perimeter. Ending3: [title] Determine the climate of the place where you live. [step] An insulated greenhouse should be appropriate for cold climate areas. Ending4: Search online or in your local greenhouse store for salvage materials you can save a little more money than you cost. Look for salvage materials in budget greenhouse psts.

Answer format: ending1/ending2/ending3/ending4