I tired using double sided removable tape last year and it did OK. Some of the panels insisted on coming off regularly and others never budged.
I've got several seeds started now. Most are doing well.
For my tomatoes I will pot up the seedings in a large pot. I put a small amount of soil in the bottom of the pot, just enough for the seedling. As it grows taller and larger I gradually add more soil to the pot until it is completely full and my plants are large enough to plant out. In this way I don't have to disturb the fine tender root by continually up potting them and they grow massive root systems for me.
