Deep cleaning is much more difficult than regular cleaning. The main difference is in the level of detail. Deep cleaning is more extensive. This includes all common cleaning tasks, as well as cleaning abandoned and/or hard-to-reach places in your home.
Kitchen:
Clean inside freezer
Clean/disinfect inside empty kitchen cabinets and drawers
Clean/disinfect inside refrigerator
Clean oven (circle regular or self-cleaning)
Clean area above kitchen cabinets & decorator items (height permitting)
Clean under the stove top (area beneath drip pans)
Clean under exhaust fan/hood
Kitchen:
Remove items from cabinets, replace shelf paper, clean inside, and replace items