Holiday to Egypt! Advice on packing and traditions..?

I'm going to Egypt for two weeks as of Monday to hurgarda.

It's the first time I've traveled without the help of my mum packing my suitcase and checking I'm doing everything okay, as mothers do!

I was wondering any travel advice (totally general) Egypt sespific or not.

What have you learnt from your travels?

Good things to pack?

Egypt customs to consider etc..

Etc ..

Thanks!