Don't underestimate the power of a simple label. You might feel silly labeling drawers and shelves with words as obvious as plates or socks. But visual aids like these help your loved one put things away in their proper places -- and find them later. Labels minimize hesitation and confusion.
Be specific without being overly detailed. "Cooking tools" is great, but there's no need to list every single item in a drawer of miscellaneous kitchenware.
Ink on masking tape works well on most surfaces and is easy to remove later.
When reading becomes difficult, try using pictures of plates or socks.
Expect this to be only a temporary aid; eventually it may become too difficult for your loved one to translate the label, whether it's in words or pictures.