I thought about the clear plastic pop bottles, but I just don’t drink enough pop to get the number of bottles I would need for this week. I’m planning on saving some for last year, because one of my vines is already too big for the large cup I am using.

I suspect that the really big clear Slurpee cups you can get here would work pretty well too.

I had the same problem, of needing the 2-liter bottles, but not supplying them myself. I asked on my local free cycle, I mentioned it to several friends, and hit up some other local lists. It was a matter of days before I had well over a hundred to cover my needs.

The other option for large easy to cut plastic containers is local school cafeterias and restaurants. They carry salad dressings, etc. in gallon sized containers. Some are clear some are like milk jugs – which I’ve used too. I transitioned my Rosemary cuttings in the garden and covered with these mini greenhouses. They work great.