Keep cleaner for dishwasher
Dishwasher cleaners are sold in powder form and in bags. These are rarely resealable. The same applies to regenerating salt for dishwashers, which is filled in cardboard boxes.
I have cleaned a bottle of the washing gel and filled the dishwashing detergent, as well as the regenerating salt, in such a bottle.
Now the detergent powder, as well as the regenerating salt, can be dosed cleanly into the dishwasher.
These bottles can be closed well with the screw cap again.