I'm not the person who originally posted that they did this, but we did and took back some kind of cake after every meal. Sometimes the desert would come with ice cream and we would just ask for it without. We were always too full to eat desert. We did have the sorbet and creme brulee at LeCellier because we wanted to try them and they couldn't be taken with us. They were great, but we only managed a few bites. We also saved our deserts at most CS places and had them for a afternoon snack. That was mostly cookies and packaged cakes.
I swear, I only eat chocolate cake for breakfast at WDW!!