Feel your pain, Fergie. We have inspections every 3 months and even when I've broken my back to have the place looking nice, there will always be toys around, the odd pile of paperwork ready for filing - it's not a showhome by any stretch of the imagination, but it's our lovely, lived-in home. We have a great relationship with the landlady - no more than exchange of christmas cards, but we know we can ask if things need doing, and we know that she's really happy that her old house is now a well-loved family home, and she trusts us. We've been there almost 5 years and are into our second 3 year contract, so that tells me the owner is happy - another reason I hate the 12 weekly intrusion.
Doesn't stop the agency getting snippy when they come, though - last week the lady doing the inspection fingered my tea towels (perhaps they weren't egyptian cotton, like hers) and made a comment along the lines of 'well, I'm supposed to say if the skirting boards are in good order, but frankly I can't see them'. That'll be because there was a bed and a chest of drawers in the way, you daft bint. She then said that she's so glad she didn't have to work when her kids were young, as she's sure she wouldn't have been able to stay on top of the housework... the implication being, as she knows I work full time, that I'm not keeping the house to her standards and am therefore lacking.
Lord knows I wish we had less stuff, but we don't, so there's always going to be 'stuff' on show - but as long as the house is clean and in good order, which it is, I wish the agents would just bugger off, franky!
FWIW, your house sounds lovely, OP :)