For me, this includes an occasional bass, crappie and bigger bream. I fillet the fish, and put the fillets in a bowl of water that's been salted down. I set the bowl of water in the refrigerator overnight. The next morning, rinse the fillets well, and transfer them to a container for freezing. Over the years, I've used small buckets, plastic bowls, and plastic bags to freeze them in. A one gallon milk container cut down to size can work good too. This has worked well, and the important thing is to make sure that the fillets are submerged in solid ice. It takes most of a day to thaw them out for a fish fry. How do you like to freeze your catch?