Going on a family vacation next week, I just ordered the EF-M 18-55 for the trip (I have the 22/2 pancake already). I ordered the Lowepro Dashpoint 30 for the combo thanks to Bryan's review (I have the Dashpoint 20, ideal for the M+22).
I'm also bringing the 1D X, 24-70/2.8 II, 16-35/2.8L II (might be its last use before I swap it for the new 16-35/4L IS), and 70-300L. But...we've got young kids and thus mostly daytime activities, I expect the little EOS M will see a lot of use.