So, when I'm solving the edges, if I get two swapped, I have to start over? Bummer... I'll have to memorize it next time.
You don't have to memorize the whole color scheme. You only have to remember two sets of 3 colors and their relation to each other. Pick the groups so that the first uses the top face as one of the colors and the second group uses the bottom face (opposite the top) as one of the colors. Then, for the other two colors you only have to remember which is right of the other.
So using Gelatinbrain's color scheme, if I pick the white-brown-lightblue corner then I only have to remember that lightblue is "right of" brown. For the second group, if I pick yellow-red-darkblue then I have to remember darkblue is "right of" red.
This is enough to remove the ambiguities in the color scheme.