She Filled Out Her Checklist Before She Arrived
One big selling point for most cleaning services is the checklist. This is usually a multipage list of all the wonderful things the maid will clean and tidy up during each visit. The specifics will vary, but the checklist usually looks very complete. It looks efficient. Actually, it probably looks like just what you're after: an organized, professional approach to doing what you're lousy at (or just too busy to tackle). The problem is that the people doing the actual work have to fill out checklists at every stop, all day, every day. That checkmark doesn't necessarily mean the work was performed. To make sure your maid remembered to dust behind the curtains, don't look at the checkmark; open the curtains and check. It's the only way to be sure.