I felt dirty when I did something like

    #one, #three, #five, #six, #nine

(Or whatever the elements we had to select were.)

Same here, and to be honest I'm still not sure what the clean solution would be for this level. With that particular html structure and class/id usage there maybe isn't any…

The hint suggests doing it this way. This solution is clean but it isn't very elegant.

Exactly. All the previous questions had real, elegant answers. This one felt like whacking the mole was _possible_, but not the right way.