Everyone is spot on so far… Here’s what I’ll add…
I’ve seen too many “perfect” plans that go from ride-to-ride nonstop. You really need to put a 10 – 15 minute break in your plan every 1.5 hours. I’ve had more than one person tell me, “I’m on vacation. I don’t need to schedule when I pee.”
These breaks are a buffer for unexpected Magic / toilet / gift shops / drinks / etc.…
When putting in these breaks make sure to account for the walking time to your next attraction. Any time you insert a “rest” into a plan, the walking times after the rest are wrong due to a bug in TP software. For example, you are at Dumbo, then rest, and then plan to go to Jungle Cruise it only allocates a one minute walk time, instead of what should have been like 10-15 minutes.
If your next attraction is nearby this isn’t a big deal, but it is something to consider.
It’s always IMHO better to have the break & not need it than get behind.
Also, IME, while I LOVE TP it’s not perfect. On average I have to cut 2 - 4 attractions / shows every day. This is even with giving myself all those breaks. More often than not TP will greatly underestimate a couple of predicted queue waits. (Often an additional 30 - 50 minutes) So… be prepared to figure out what you can be ok missing or not getting a repeat ride on.
I have kept my plans over the last 3 years and written out all the data. (predicted vs. actual waits) IME - Touring Plans averages a -81 minutes longer than predicted each day. Again… I’ll never go to WDW / DLR / UOR without a personalized TP , but I’ve learned that you have to leave good amounts of unscheduled time & add in 10 – 15 minutes breaks every 90 minutes or so to be able to realistically accomplish all that I want.