Do you have difficulty with tasks like showering? Try this solution:

Create a waterproof magnetic laminate board in shower and create a list of your shower routine. Have someone help you and list your exact washing routine step by step. Type, laminate, and put this in the shower. Use a magnet and move it down the list as you wash each body part.  Also, set a timer for the total time you desire the shower to be. If needed, you can set a timer in shorter intervals to remind you to move on to the next body part.