I will keep one for savory and one for sweet (Wonder how long that will last?)
I always keep my lid upside down on top of the bowl to help it air. I know the older seals seam to be better in that they didn't get smelly where I have the newer seal that can smell a little but I have never had problems with the smell going through anything else I cook afterwards. And I know I say I will keep one seal for sweet and one for Savory but I think that will last all of 2 seconds as you said Faffa I will want to use it now and not worry about which one is which. Unless they are color coded it will become impossible to tell I think.