Typically when I do it, I do the tasks like watering plants, feeding pets, etc. I also believe the point of house sitting is to make it appear occupied and busy, so I spend about an hour playing with the pets, watching tv, and cleaning up little messes

Without reading the article:

• High resolution textures
• large maps
• audio
• Internet cache
• shaders
• code left for debugging and data collection

The only problem I see is using 8x slots instead of 16x slots for double the storage