I always keep a book nearby.
One by my bed, one in my shoulder bag, one on the passenger seat in my car.
That last one is always small, light, and fits into pockets or is easy to carry into the supermarket, specifically, for checkout line reading. Typically that will be a book that I’ve already read once or twice.
I never go anywhere without one, even if there’s almost zero chance that I’ll be able to read.
If I forget one, it’s not the end of the world.
But it’s always better to have the option, than not to.