Barb, we did the same with my sister in law.
We would put "tags" on the arches of her shoes that she could feel the difference and sameness with. Many times she would leave the house with mismatched shoes. Silly girl! :)
She loves the Glad containers since they have an embossed seal on them and we had gone and bought her a braille embossing machine. Would make labels for her clothes and food for her. That worked wonders! She is a very independent woman and doesn't like to take help from anyone. Makes me mad at times. We would make recordings for her so she could remember where things were.
I actually told her once that I wrote her a note and left it on her counter. If she needed "help", she could just go and read it. lol I thought I was going to be caned to death! So glad I'm the favorite sister in law! lmao