If you don’t have lots of money to buy seed starter kits, try these one gallon size plastic bags. I use them for starting seeds and also for cuttings that I’m rooting. If I use small plastic cups I put them in a plastic container so that they won’t fall over. Cool Whip containers work well also. Six-pack trays can be put in as is. Make sure everything is well watered, place them in the bag and put in a marker with the date and the name of the plant. I prefer the plastic bags which have the zipper which make opening and closing much easier.