You'll notice when reviewing (or editing) a recipe now that there's a space for private notes. This is a place you can put anything you want - personal notes that wouldn't be meaningful for other people (ie: "Use the white casserole dish for this. John loves it, but Becky doesn't like the onions"). Also, as someone asked on another discussion, you could even put recipes you have copies of in here. I've made it take up to 5000 characters, which should be enough for most recipes. As usual, let me know if there are any bugs I've missed.