I have a Restrap framebag and a Restrap saddlebag
The framebag is not absolutely audaxing-in-wales-waterproof but it is waterproof enough that I have not actually had any problems with damp stuff in it. Despite riding in the rain in it. It must be more than 4 years old now and it is still in excellent working order
The "saddlebag" isn't a Carradice idea of a saddlebag. It is a holder for a tapered dry bag which is attached to the saddle. The holder is very good, light and quick and secure to fit. It is slightly newer than the framebag but again it is a few years old and still good to go, no signs of wear
Prior to this I had various homemade dry bag based things
I still have a large double ended dry bag that I can strap to the handlebars, that worked as a thing
I did at one point try using an Alpkit Stem cell but it wasn't a success. It got in the way and didn't shut effectively. Alpkit don't make them now so i guess i wasn't the only one not using them
One of my mates has a Apidura saddle bag (same design as described above) and this seems to be reliable etc