I think it does, you've already won! But just to make sure, the next time she visits, get a Post-it note and write, "Linens were washed on April 1. Any questions? Just ask!" on it.
I've often written about how grateful I am for the technology that prevents me from hand-washing all of my clothes. But even though the washer and dryer do the brunt of the work, I have gotten into a horrendous habit of leaving clothes folded in the hamper for too long (or, worse, leaving them in the dryer). It's easy to multitask during a wash or dry cycle, but only if you actually finish the task.