Biquick shake & pour for the two of us. Only a $1.79 at target. Bottle claims to make 12-15 pancakes, in reality makes maybe 8 normal size pancakes. Four pancakes each for the two of us...very doable.
Even if you only ate two pancakes a piece....wasted half a bottle, you would be throwing away 50 cents. Worth it to me to have a spill proof, no fuss, mix/pour container that we can throw into any storage compartment in the TT. REQUIRES NOTHING TO CLEAN
I could not imagine trying to mix in a bag---I am thinking lumpy pancakes. Most other options would require washing one container----there is a reusable/WASHABLE blender in a bottle that can be used for multiple mixing.
If throwing away that 50c is troublesome, find a hungry neighbor.