There's more than a full size difference between my feet, caused by an injury as a child, and they are very different shapes, so getting skates which fit both is a bit of challenge. I usually fit the larger foot then pad the other with insoles etc.
Someone suggested that I could order different sized boots, or go down the custom route (which would also mean different sized boots), however if I do does that mean I will need to get different sized blades, and if so is that likely to affect my skating?