If you must satisfy one of your cravings, downsize. Opt for the smaller-sized package if you know that you can’t resist the temptation to eat more.
If ice-cream calls, make it an occasion, and build in la passeggiata – a walk to your favourite ice-cream dispensary (yes, it can have the same allure as a drug), and choose a cone – that’s one serving versus the entire carton.
Yes, it is more costly to buy just one – financially speaking, but what about the cost circumfrencially speaking? About those joints – they’ll be happy to bear a little (or a lot) less weight, too.