Nat82 - I was having a weekly clean before I switched to fortnightly and I honestly thought the house would go to rack and ruin in 2 weeks! But surprisingly it doesn't get too bad. I have to vacuum every couple of days anyway thank to DS1 traipsing sand all through the house, and of course I'll wipe down the kitchen if need be. I wouldn't be comfortable giving them a key so I'm always home to let them in. Then I usually go out as it's hard to keep out of someones way for 3 hours plus DS1 would make even more mess.