hiding customs and handwritten letters/notes
Two questions! First off, does anyone know how to "hide" custom posts? Basically so that a custom (or public entry) you've made for someone doesn't show up on your journal unless they hit the link? I've seen several journals do it where basically on their journal they have links set up for the people they've made customs for, but without those links there doesn't appear to be a way to find them on the journal.

Second, is there some kind of site or program for "handwritten letters"? I've seen people post images of what look like hand written notes and letters in journal entries and I can't for the life of me figure out if they use some sort of image editing program or if there's an easier way to do it. Thank you, I hope that all made sense!