...
Ginny lives in Gryffindor Tower. Unfortunately, she must do her own laundry so that she does not accidentally free any of the castle House Elves. She has one load of robes that she wants wash, so she checks to see if any washing machines are open. Though none of the machines are vacant, there is one that has finished running and still has wet clothes in it. Ginny wants to do her laundry now, but she doesn't want know what settings to dry the occupying these clothes on the wrong settings. Ginny is able to view a note left by the owner of the clothes and dry their clothes the clothing on the appropriate settings.
Ginny also has her own laundering preferencepreferences. Thus, after she personally loads her laundry in the washer, she wants to make sure that other students do not subsequently dry her laundry incorrectly in case she doesn't come back to move it on time. She therefore leaves her own note, explaining that she wants her clothes dried on the delicate cycle.
...