Stylus Pens
A stylus pen puts a touchscreen tip on one end and a working pen on the other, which is exactly what you want when half your notes are on paper and half are on a tablet. It removes the small daily friction of putting one thing down to pick another up.
Tips come in two useful kinds. Rubber dome tips are cheap, durable and work on any capacitive screen, but they are blunt and hide what is under them. Fine mesh or disc tips are far more precise and much better for handwriting and marking up documents, at the cost of being more fragile. Neither needs a battery or pairing, and both work on phones, tablets and touchscreen laptops.
The pen half is what you will actually use most, so judge the balance and the refill format first. A stylus with a comfortable ballpoint and a standard refill will outlast several tablets.
Care is simple. Keep the stylus tip clean — dust and skin oil are the usual reason a screen stops responding accurately — and replace mesh tips when they start to fray rather than pressing harder. Avoid leaving a rubber-tipped stylus pressed against a screen in a bag, which flattens the dome permanently. And check the pen half’s refill format before buying, since that is the part that will decide whether you still own it in five years.