Hi all, here's an idea for growing seedlings - reuse old takeaway coffee cups - just punch a hole in the bottom for drainage.
I'm not shy with the holes; I use a big nail and put at least a few in the bottom and more around the bottom quarter. Drainage is really important, but lots of holes also makes bottom-watering easier.
I've seen a industrial bin filled with half-size tubes. I took one bag. I now have 1000 tubes too many. Goodness knows how many went to the tip and that wasn't the first time.