[PaulF]

For me, peat pots were a complete disaster. I purchased several sheets of plastic six packs of a couple different sizes and have used and reused them for many years. Over the years of buying different plants and flowers an accumulation of 3, 4, 6, and 8 packs have kept me from purchasing or dumpster diving for anything. No need to punch holes since they are made with watering in mind. They fit the trays I have and are more stable than a pile of single cups.

The nurseries I send seedlings to have supplied me with trays made to hold single plastic pots in the sizes they like along with the 3" and 4" plastic pots.