I'm coming to Lagos, Nigeria in about 2/3 months, I've never been there alone and I was wondering if anyone has any tips on holidaying in Nigeria, especially Lagos.

If anyone has any tips on etiquette and life in general in Lagos that would yield an easy trip, it would be much appreciated.

Tips I've heard so far include;
Don't forget ATM card in the machines as money comes out first
Have Naira on you at all times
Travel to Nigeria with a passport rather than a visa
Don't complain


Thank you!