Does anyone have experience on going from Valle D'Aosta to Chamonix via cable car and bussing back through the tunnel? Or does it make sense to do it how Rick describes (https://www.ricksteves.com/watch-read-listen/read/articles/sailing-over-french-alps) and drive up to Chamonix, then start the cable car on the French side to the Italian side, then bus back, and drive back to Courmayeur?
Any insight on buying the ticket or how to make it work most efficiently/romantically/beautifully?