I think of the tabs as representing file folders in a filing cabinet. In a three dimensional view, the first file folder would be closest to you in the lower left hand position. The last folder is in the upper, far, right-hand position. Once you see the logic behind it, it is no longer a big huhoo.
LOL.......It's not a big huhoo anylonger, I just decided to leave things as they are...Thanks!