I'm sure most people are not avid readers of travel blogs and websites like I am, but I came across this post on Notes From a Cafe, and it's certainly worth sharing. For those of you who have trouble planning itineraries, or for those of you (and I've dealt with this enough myself) who get guests coming to visit who have no idea what they want to do and expect you to do the travel planning for them, here is some great advice.
Making A List, Checking It Twice
I've done this before when planning trips, although I always keep the list filed away in my brain instead of on paper. Or I get a guidebook and either highlight what I especially want to see (I advise against doing this if the book doesn't actually belong to you) or getting those little Post-It flags to mark the pages.
I will add to this that if you have one of those situations where people are coming to visit you and expect you to plan what they are going to do, at least try and get some sense of what they might enjoy (if you don't know that already). If they're not into art, it won't be fun for them (or you) if you drag them to art museum after art museum. If they're not outdoorsy types, a hike through a national forest is going to be more torture than vacation.
But the link above at least tells you of a good way to start your planning.