I've always preferred to soap up alone…
I’m not sure Leyendecker’s illustrated ad would make the cut today…
“Ivory Soap had a good many unusual experiences during the war, and was found in many strange bath-tubs… ‘We all had a bath in a large canvas arranged for the purpose a few days ago, about 25 being under the hose at one time. Best of all, we had Ivory Soap. It certainly seemed like home to rub in the mild Ivory lather from head to foot and then feel the delightful exhilaration following a brisk rub down.'”
A Proctor & Gamble advert in The Geographic, 1919 (source).