When it's hard to separate your dogs and your plants, some plants run the risk of getting stomped into oblivion or dug out. Here's a low-cost solution.
I kept running out of them and rotating them around to younger seedlings, so now I use the Red plastic drinking cups from Costco. I cut them in a way to put over my seedlings to protect them. The bottom goes in the ground when the seedling is planted. Keeps my dog from crushing the seedlings.
A True gardener will purchase a thousand plants before thinking of where to put them :P