Put cabinets on a slanted wall
Hi Mary, wow that can't be easy to decorate on a slanted wall, but I did find this video that shows you how to build angled cabinets - https://www.youtube.com/watch?v=DNWCjFUE75s
You will have to have purpose made cabinets, that fit the wall shape at the back but hang straight to give you some storage. This would be a job for a cabinet maker or a carpenter. You could do something yourself such as fit brackets to the wall and make shelves. Hope that helps a bit.
The cabinets would have to be cut so they are straight when on the wall the back would have to be angles