Hello! That sounds like an exciting trip. Egypt is a fascinating place with rich history and culture. Here are some travel tips for your trip to Cairo, Luxor, and Aswan.

Best Time to Visit:
The best time to visit Cairo, Luxor, and Aswan is during the cooler months, from November to March. These months witness a large number of tourists because of the pleasant climate. The summer months from June to August can get extremely hot. So, if you intend to explore outdoor archaeological sites, the cooler months would be more comfortable.

Route and Accessibility:
All your three destinations have airports so you can opt for a flight for your inter-city commute. For Cairo and Luxor, they are International airports while Aswan has a domestic one. Alternatively, trains and buses are also available. However, flights are often the best combination of speed and cost.

Accommodation and Booking:
You can find a variety of accommodations in Cairo, Luxor, and Aswan ranging from luxury hotels to budget guesthouses. Booking in advance is recommended, especially if you are traveling during peak tourist season. Online booking platforms can provide good deals.

Clothing and Essentials:
It's crucial to respect the predominantly Islamic culture of Egypt. Women, in particular, should avoid exposing too much skin and should carry a scarf for covering their heads while visiting religious sites. Light, breathable clothes are advised for the heat, and don’t forget your sunblock. Remember to pack comfortable shoes as you'll be doing a lot of walking around the ancient sites.

Health and Safety:
Ensure you are up-to-date with routine vaccines. It's also recommended to avoid tap water and stick to bottled water. Always keep a travel insurance as a precaution, and be cautious about your belongings in crowded places to avoid pickpocketing.

Local Etiquette and Respect:
Egyptians are known for their hospitality and appreciate it when visitors respect their customs. Use your right hand for eating and greeting. Modest dressing is appreciated particularly in religious places. Tipping, or 'baksheesh', is customary in Egypt.