I posted those videos several times over the past few months as I was getting close to my checkride. The first one is easy to find on youtube...the other two you have to search a little harder.
For me, it was just continual studying for almost 9 months. I wasn't worried about memorizing stuff like TOMATO FLAMES. In fact, my DPE when asked about MEL stuff said, "I'm so glad you didn't say TOMATO FLAMES." I just said a few that I knew offhand and as I was saying those opened my FAR/AIM to the place I had bookmarked and read the rest. It's an open book test, to a degree of course, take advantage of that. I found myself looking stuff up even when I knew the answer just in case we got deeper into the conversation as my DPE was a very reg oriented guy and was ALL about the PTS. He liked that I knew where to find everything - quickly. Take advantage of that.
Nothing is better than going in prepared. You know when you've done what you need to do and are ready to go. I know most folks feel like there's always something - and there is - but I think people know when it's time. When you go in with confidence - not arrogance - it makes a huge impression on the DPE. I guarantee you they would tell you that they know within the first 5 minutes how the Oral is going to end. Don't screw up that first impression. Have your logbook squared away, know everything about the engine logs - have that stuff bookmarked, etc... If it's ugly in the first 5-10 mins it's going to rattle you.
Check my post history - I did a long write up on my checkride several weeks ago. Even though I didn't miss a single question on my oral (well, not one that any PPL candidate should know...they'll take you deep into a few subjects to see what you really know) it lasted somewhere around 2.5 hours total. He covered EVERYTHING on the PTS - almost reading down the list asking questions.
Just really understand the concepts and don't spend all your time trying to memorize this stuff. Another example for me was hypoxia. What a huge waste of time/brain cells trying to memorize each and every type and the associated symptoms. I just knew all the various symptoms that could exacerbate hypoxia (alchohol, medication, etc...) and when asked about it - talked through it logically. It's a practical test - how do you take book information and apply it 'practically'. Are you going to remember any of those specific hypoxia types 2 days after the checkride? I won't. But I remember the context and honestly, what's important about hypoxia - which isn't the clicnical definition names.
So, just be prepared to have a very detailed aviation discussion. Almost every question my DPE asked me I answered with context to safety and decision making.
Finally, I wouldn't try to cram the night before or day of. I almost didn't look at anything the night before - besides putting together my XC and as others mentioned really thinking about any question he could ask about airspace, obstacles, special use area's, etc...
Even though my DPE was a hard-ass, I enjoyed the day. It was a challenge and I didn't want or expect it to be easy. I would have been dissapointed I think if it would have been. Ask questions, they love it. After all, every DPE has likely spent a decade or more of his life teaching. They are smart folks with a ton of experience. I asked a lot of questions during my oral and checkride and I learned a lot.
Best of luck to you!! Look forward to your write up!