Hi, I use pencil cases. Paper chase have a good one with a chunky zip and internal zip where I can put cards (link below) but I also use a standard chunky one with only one compartment for less coordinated days. Maybe it's just me, but I also find shallow bags with pale lining useful. I can't find things by feel so I need to be able to see them quickly and pale lining and a bright purse (pencil case!) works well. Also (and I know they are very expensive unless you grab one in a sale) Kipling bags are great because the zips are chunky with round pull tags so easy to get into. Mine has light grey contrasting lining and is a shallow, chunky design (flat bags are too tricky). I also have a purse with a wrist strap on the zip which is good if I'm going to keep it out of my bag for a bit and make up bags are also worth looking at.
Of course I'm still working on the obvious - "I have Parkinson's, I'm a bit slow could you give me a minute" but maybe one day.
J x
https://www.paperchase.co.uk/stationery/essentials/pencil-cases/cs-triple-pencil-case.html