My latest project
There are two types of containers that we use and RELUCTANTLY throw away ... One is wet wipes and the other is coffee creamer. The opening in both is very nice and we use them for powder detergent for camping trips ..etc. In the wipes containers you have to cut the lips in the openings to make sure the powder (and small lumps of detergent ) flows smoothly.
WARNING:
Make sure to remove the creamer wrapping from the container so that there is no mistake . You do not want to put detergent in your coffee !!!
Next time when you consume one of those 5 kilograms ( or 10 lb ) of detergent .... and before you throw the empty plastic bag with all those detergent logos , cut one of the logos and glue it onto the re-purposed creamer container , so there is absolutely no mistake about the contents.