I can't make up my mind about the 'jeans system' at Old Navy. You have to choose between so many things! Waist size and leg length, sure, but then you have to choose the type of rise, the wash of the denim, the cut of the leg... it goes on and on. Sometimes I hate it that they can't just make things simple, but then other times I love it, because their jeans fit better than anyone else's and now that I know the system, I can usually just breeze right in there and grab my boot-cut short-leg low-waist vintage-wash stretch-fabric pants, try them in sizes 10 and 8, and know for sure that one of them will fit.
If I were in a more philosophical mood, I might start doing some type of social comparison, i.e. how complicated every aspect of our society has become, blah blah blah - but I'm hungry and I have to swim soon, so I'll let you all work it out for yourselves. :)