One fight you have with your S/O that other couples don't have

Mine is over the sheets. I like mine washed once a week. She does it every other week. Well if she doesn't want to do it every week I figured I would just do it. Well every time I wash the sheets all hell breaks loose. She "likes" to do the cleaning and me do the outside work and cooking. We made that agreement years ago. Well something about sleeping on old sheets bothers me. I am the only person I know who feels this way and we get into legit arguments over the sheets. The argument, however, is because I am putting them on to wash. Crazy shite. I got a text this morning mad because I put the extra set of sheets on the bed and put the good set on to wash. Well she got home from her business trip and wanted the "good" set on.