It only cost around $7. Then there's the cost of the seeds to consider. Still, it won't break the bank if this experiment fails. 
The instructions look simple enough. I'm using the greenhouse to start my blight-tolerant tomatoes and a carnival-mix of sweet peppers that includes purple, yellow, green, black and red varieties. Oh yes, and I had five open little pots where I put marigold seeds, just because I didn't want them to be empty.
Here it is, all water-soaked and expanded, with at least one seed in each one. Wish me luck! I'm supposed to leave it out of direct sunlight until the seeds sprout. I'm going to leave the "followers" feature on because of the comments I received about it. I did remove a couple of other things that nobody (even me) looked at anyway. The poll, of course, will leave in a day or two.
Now to find a spring-like header to replace the dogs in the snow.
And no, I didn't remove Sitemeter. I shrunk it and made some changes, but it's still there.
