Failing at Mix & Match

I wonder if I am alone in the world to fail at the mix part of Mix & Match? I don't think I have ever owned a shampoo from one brand at the same time as a conditioner of another. If I don't get on with my face moisturiser, I will go look for a better moisturiser - and then buy the matching facewash. I just cannot help myself, it just Doesn't Compute.

I may soon be getting an iPad (in spite of the hideous name) and I am concerned that it will trigger a need to buy lots of Apple products. Could get expensive...