There's always an awesome swimming hole at Hermit Creek. (Except after major, major floods.) It is HIDDEN just below the campground. In fact there is a campsite almost right above it. There's a little trail that passes just below the one campsite that is under an overhang and drops down to the creek. Just ask the other campers, or listen for shrieks. It's chilly, by the way, especially this time of year. In summer it's very nice, but in spring and fall it's cold.
Ditto on the camp shoes. Flip flops are okay, but I favor the low cost Tevas (the cheaper models of Tevas are lighter in weight). Most people seem to bring one or the other. Occasionally I see someone with sneakers in camp, but that's way overkill, you don't need sneakers. Tevas saved me last year. I hiked the last 20 miles of Huitzil/Royal Arch Loop in Tevas when I had a boot/foot problem.
Ditto on the freeze dried dinners. Don't mess with cans. Just go to 4 seasons or Peace and get a couple Mountain House or BP Pantry dinners. Then repackage them in freezer bags, into which you can pour hot water. Yes, I know you can pour hot water into the bags they came in, but those are bulky. You can also bring all your dinners, except for one, in cheap ziplocs, and then keep reusing the one Mountain House bag for all your cooked-in-the-bag meals. Expect that your cookpot will never need washing: always bring food that just needs hot water added.
Do you drink coffee? I am particular about coffee. I have started using Via from Starbucks, can also be bought at the grocery store. If you buy the 12 pack it's about $10, so not cheap, but it is worth it. Very tasty. I like the Colombiano. Then since I like milk AND sugar in my coffee, I bring sweetened creamer, usually French Vanilla flavored, from the grocery aisle. Comes in a small jar. Of course I repack it into ziplocs.
Everything that can be repacked into ziplocs should be. I once knew a guy who packed his clothes in ziplocs! He'd press all the air out of the bags and rubber band them tight. Took up a lot less space. I've tried it. It works, but it's usually overkill. I use that method when I am short of space.
ONE change of clothes, if that. For a three day hike I will have ONE pair of zipoff pants. No spares. Actually, even for a 5 day hike I will bring only one pair of zipoffs. I won't use any pants other than zipoffs (and I have no idea why Outside Magazine makes fun of them, has them on their top ten list of gear they don't like. DUMBIES!) Zipoffs save my butt every trip, because I absolutely HATE wearing long pants, (in town, too, I hate long pants) and only will do so if it is cold, or very brushy, etc. I have several pairs, and the lower sections are always a lot darker and less worn-looking, but I do bring the lower sections and use them occasionally.
I will have one pair of lightweight longjohns to change into, only for sleeping and hanging out in camp. I will probably have only two shirts. One is only for sleeping/sitting in camp. You don't want your sleeping clothes to get damp. I don't sleep nude, because then there is nothing to absorb the cold sweat. If I bathe in the afternoon there is less cold sweat at night. I think probably most people do sleep nude, though.
Last but not least, bring a needle on a card, with some thread wrapped around it:
There is a point of no return unremarked at the time in most lives. Graham Greene The Comedians
Steal your face right off your head!