Holes in wall from hanging pictures, removal of decals on the walls. Larger gouges etc.
-Tear in carpet, animal stains (even if landlord knew you had a pet). Burn marks - iron, cigar, cigarette, ground in stains.
-Doors with holes. Doors or windows broken. Glass etc.
-Clogged drains caused by your misuse of sinks or toilets. Dispose of feminine products in the trash, not the toilet.
-Broken or missing blinds or curtains. If they were there when you moved in, they must be there when you leave. If you don't want them, discuss this with your landlord. If he says "I don't care" send him a letter to confirm
-Eliminating Flea infestations caused by tenants animals. The same for smoke damage from smoking or burning candles.
-Excessive Bathroom mildew. Use a good cleaning product like Tilex or Spray 409 weekly.
-Broken shelves in a refrigerator. Excessive dirt/dust in the refrigerator vents. This is the area under or behind the unit. Vacuuming improves performance. Every time you vacuum, vacuum around the unit,
-Excessive dirt or filth in an oven or refrigerator. Defrost the refrigerator if not frost-free. Stoves can take 2-3 hours to clean. Use Easy-off. That's why they named it that.