I use "Unofficial Guide to WDW" (book) it lays out a plan for each park (all 4 WDW, and each water park, and Universal parks) with a few optional plans for your type of group (i.e. young kids, adults only, etc.). After reading much of the book to become familiar with the plans, I make copies of the 1-page plans I want to use from the back of the book, I write on the back of those pages any notes for our day at that park I don't want to forget (like entertainment times) and I fold them up in my pocket. If going mid-day, just pick up later in the suggested plan, such step #10.
But, the book gets released to book shelves about August for the next year, so it's a little behind in some information that will have already changed by the time you arrive in June. They do offer website updates to the book so you can peruse new info.
We used these guides regularly for a few different trips, now we have more of a handle on how the plans work and don't have to follow them to a "T." When you get to a step they suggest and don't want to do that, just skip it. THE MOST IMPORTANT PART IS TO HAVE A PLAN AND STICK WITH IT (at least for awhile). The difference will be the "plan" and not "where you stay." It was difficult when my kids were young to walk past something, they see it, ask to ride, we have to say "we'll ride that later" (cause it's not in the plan for this moment, but later it will be). But everyone in the family understands there is a payoff to sticking with the "plan." We waited maybe 1/2 hour for rope drop at EP one morning, as we moved in the large herd, I mean mass of people. We get to the point where you turn left for TT or turn right for Soarin'. The family in front of us stops cold on the sidewalk, one teen saying "I want TT" the other teen saying "I want Soarin'." I wondered what exactly had they been talking about for the last half hour waiting for the gates to open? See ya', we'll be on our first ride while you figure that out.
For us, we have found that if we arrive at RD, follow a plan for at least 4-5 rides, we can pretty much do what we want after that. We leave mid-day for a nap (even when we're offsite) and return in the evening and jump in our last line just before the park closing time. We save the long line, hard to get FP, for RD or at-closing strategy. If we are staying offsite, we still study EMH times so we can plan opposite them and avoid them. Let's say MK has an AM EMH on a Tuesday, to me it is less likely that an onsite guest would plan to go to the same parks 2 mornings in a row. So, I will plan our MK morning either Mon or Wed. Similarly, if MK is having a PM EMH (say midnight on a Wed), it is probably less likely the onsite guest will stay to midnight and then be at rope drop the next morning, so I'll plan to be at RD on Thur. DO NOT GO TO AN EMH PARK YOU IF YOU ARE NOT ABLE TO USE EMH privileges. Because we leave anyway to nap and eat offsite, we will hop to a different park for the evening.