I'm not going to be signing up, but I am excited about the Cookie Jar and want to clarify a couple things. It's okay for me to leave prompts, even though I'm not signed up for the 3 Ships exchange, right? And, er, how many prompts would be considered polite to leave? (Because I could come up with lots and lots in a variety of fandoms, but I don't want to be annoying about it.)