You mentioned drinking coffee thru a straw-we have that for mom too. I found some lightweight disposable/reusable cups in the baby aisle. They are much easier to handle due to their weight. At first she was not happy with them but after using them a few times and not spilling she changed her mind. The only thing we change is to use a bendable straw rather than the short one that comes with them.
Just wanted to add, I don't know your age or situation, but if there is an agency on aging in your area, contact them to see if you qualify for PT or OT. Someone came to the house for mom and helped us find adaptable items that can make things easier. Good luck to you.