Don't change your money until you get to Egypt. Exchange Rate at airport LE7 to 1. Rate from tour rep and machine in hotel LE8.4 to 1. Don't get your VISA in UK get it at arrival airport. In UK 18 and at arrival airport 13.
Don't believe what they say about the water. By this I mean you are told you will be fine if you only drink bottled water. You are also told that bottled water is used to clean salad foods and for manufacturing ice. What you CANNOT get away from is that you shower and wash your hands in tap water which at some time will enter your system. Also while the work force were meticulous at washing their hands prior to serving they are only using tap water..............gotta go back in a minute..........still firing Bovril Bullets.
On arrival and departure we had armed guards front and rear of a 3 bus convoy for 30 miles.
I would estimate 70% of the worlds discarded plastic bags are strewn across the Egyptian soil. Certainly around MM anyway.
Otherwise the Egyptians are a friendly bunch.