I suggest that once a year you go around and make sure these valves are loose and can be shut off by hand in case of a broken line or overflowing toilet.
It also would be wise to make sure everyone in the household knows where the main water shut-off valve into the house is located to avoid major damage in the event of a broken pipe in the wall or ceiling.
Use the highest warm-water level possible, your normal detergent and 1/2 cup of baking soda. Add a cup of vinegar during the first rinse cycle. Do not put the shower curtain in the dryer. Take it out and hang to dry.
After several attempts to run her off, we cut some strips of shiny Christmas paper and taped one end of each strip to the window. The wind would blow and keep them flapping. The flapping strips of paper scared off the female cardinal, and now we have peace and quiet.