Sit while sweeping.
Use adaptive equipment, such as extended handles for dusters or brushes, to sweep the kitchen floor while sitting. Or if you need to sit while sweeping the floor, use a child-sized broom. When dusting hard-to-reach places, attach a tube sock to a yardstick with rubber bands and enjoy the extended reach.

Clearing the kitchen floor of crumbs.
Sweep kitchen floor crumbs into a pile, then wet a paper towel, wring it out, and use it to wipe up the crumbs. This technique works well if you can't coordinate the use of a dustpan and broom.