No, I am not going to tell you about the Karnak Temple, the Valley of the Kings, and the Queens or Luxor Temple. I am going to tell you about the magic of the Nile riverbanks at 3 in the morning.
If you have important life decisions to make (whether business or personal), you want to be totally relaxed, with minimal disruption and the right ambience to reach those decisions. There is no better place for that than the riverbanks of the Nile in the early hours of the morning. The surface of the Nile at that time is so calm that it becomes almost a perfect mirror reflecting with near-perfect accuracy the palm trees, moon, and structures of the other side of the Nile.
The river is quiet, and the only auditory distractions are the engine noises from the huge riverboats ploughing the river every now and then and the birds of the Nile nesting and cooing at the riverbanks.
My favorite spot is a nice bench on the Crocodile Island, about 5km south of Luxor (the island is the location of the Jollie Ville Movenpick Hotel) and a well-known bird sanctuary and balanced ecosystem. In near-perfect relaxing conditions, with the pleasant night breeze and the majestic presence of the Nile, your ability to reach decisions and solutions to problems multiplies.
Quick Tips:
Yes, you should not miss the Karnak Temple (especially the light and sound show, which is probably one of the best of its kind). Karkak is worth visiting, both during daylight hours to appreciate the greatness of the ancient Egyptian engineers and sculptors and at night for the show. Then you have the Luxor Temple in the heart of Luxor. Do not miss the small but impressive and informative Luxor museum. Make sure you take a felluca ride to and from the Banana Island (do not forget your camera and a good book - the journey can be VERY slow).
And, as for me personally, my best leisure time in Luxor was letting my other half stroll in the souk, shopping, while I found a nice seat and table in one of the many cafeterias on the east bank of Luxor and spent the next few hours reading my book, smoking sheesha (incidentally, I do not smoke cigarettes), and watching the riverboats going up and down the Nile, soaking in the sunshine at the same time
Best Way To Get Around:
You may try the caleche (the horse-drawn carts) if you wish, but I cannot bother with the bartering process. Taxis are a good and inexpensive way to get around. If you get the taxi price list from the reception of the Movenpick hotel (which are more than generous for the taxi drivers), you have a very good yardstick for your negotiations.
Then you have the fellucas (the small sailing boats that go up and down the Nile), but if time or speed is an issue, you better give them a miss.