Just use the local currency--it is very easy to get money from ATMs. Particularly in the last couple of years, as the USD has been cratering in value, it is a mistake to assume that people in foreign countries actually want our currency. The EGP has been pretty strong against the dollar, so giving people dollars is not much of a gift--more of a negative.

I find it presumptuous to assume that everyone in the world is clamoring for USD and will be happy to receive them. In most places, it is not only the law that only local currency can be used, but it is also a major PIA for recipients to spend dollars. The only places I'd even contemplate it are those countries that are (a) very close to the US geographically, like Mexico or Central America, and/or (b) with super- or hyper-inflationary currencies (i.e. not Canada). And even in those instances, I would only use USD if the seller specifically asked me to.