People suffering with arthritis?

Or if you know someone who suffers with arthritis. What are some daily activities that are difficult due to your/their arthritis? Something that a product can be developed to assist with that activity to make it easier. For example, lifting the kettle, operating the toaster, microwave, using cutlery (these are general kitchen activities). Also, maybe you have a hobby like fishing or playing guitar, which arthritis makes it difficult for you to complete these hobbies? thankyou for your help