For problems with shoulder, store items in lower cabinets to avoid reaching. Use lightweight iron if you must iron your clothes. Use two hands or alternate iron between hands. Adopt a new look with an easy care hair cut. Use hood type hair drier.
Electric razors are less fatiguing than safety razors.
Build-up handles on toothbrush. Use self-wringing mop. Use dusting mitt and keep your hand open while dusting. This is often the first recommendation. Moving the affected area is important, but avoid stressing the joint.