My best cleaning device is this:
iRobot Roomba 780
http://www.amazon.co.uk/iRobot-Roomba-V ... roomba+780A robot vacuum cleaner which cleans our appartment three times a week on a schedule while we are at work. The results are great (I found it hard to believe that they were effective before getting one, but its better than me at vacuuming
).
This has really helped with my dust allergies =), and it keeps downs, seeds, chewed wood etc to a minimum.
The only downside is that its quite an investment, but I was starting to look at hiring cleaning help (as I want my house clean, but dont enjoy cleaning) and that would be a lot more ^^.
EDIT:
Actually it cleans all rooms except the parrot room, which I still clean myself with a standard vacuum cleaner and a bucket with a mop while the birds are out flying in the rest of the appartment, as they dont really like the sound of a vacuumer ^^.