I have an espresso machine, and 'frothing' some coconut milk works well for me. It gives it enough flavor, because it's on the sweet side. Same with full fat cream; it will work.
If I don't do the froth, I will mix in a little bit of any of the following: Chocolate, honey, agave nectar, coconut sugar, vanilla (just a drop of vanilla extract will flavor it).
When I'm on the road, I'll just take it black, because most places (i.e., airplanes) will just have sugar and those weird half n' half cups that somehow never go bad sitting in a warm box, and probably contain soy.
Stumbled into Primal due to food allergies, and subsequent elimination of non-primal foods.
Start Gluten-Free/Soy-Free: December 2012; start weight 158lbs, Ladies size 6
Start Primal: March 2013, start weight 150lbs, Ladies size 6
Current: 132lbs, Ladies size 2
26lbs lost since cutting the crap.