(I don't have a container for my knäckebröd.)
I used to take the knäckebröd that was on top in the package. That one then always had gone a bit soft. But I always knew that there'd be a crisp one waiting for me right after.
Nowadays I lift the top one and take the crisp one underneath.
The lesson taught is that one shouldn't needlessly have to suffer for a little treat that may result from it. One is is allowed to enjoy a bit right now.
(Nowadays the last knäckebröd in the package always is disgusting though.)