There are certain days when I just need a pint of Ben and Jerry’s Half-Baked frozen yogurt. Mr. Geek knows I mean business when I sit down with the pint and a spoon–I won’t be sharing. So when those days come where I don’t finish a pint in one sitting, this lock will come in handy. Alternatively, if you’re trying to avoid ice cream for a couple days, let your partner or roommate set the code for you. It beats ordinary willpower!

Pint Lock, $6.64 at BenJerry.com.