There are loads of things you will already have planned, but here are some locations I would recommend. I have also left some tourist brochures on the table in the main living room
Dunkeld - historic village with the river Tay running through it. There is a cathedral with lovely grounds. Nice pub Taybank overlooking the river
Pitlochry - famous for its salmon ladder, if you're lucky you might see some jumping up it
Blair Atholl - castle
House of Bruar - upmarket clothing outlet with restaurant, shops etc
Dunning - pretty conservation village with ancient Pictish stone cross
Perth - recently renovated museum with the Stone of Destiny (used for coronations in the UK), shops etc etc. Nice walk over the railway viaduct, then follows the river around to the heather garden
Scone Palace - palace tour and historic gardens
Gloagburn farm shop - nearby and sells farm produce, has a nice cafe
Tickled trout - cafe / restaurant set near a trout farm, very good
Household shopping (all nearby)
Tesco Extra - Crieff Road PH1 2NR. Large supermarket
Aldi - Unit 6 Ruthvenfield Road PH1 3EE. Budget supermarket in a small retail park. There is also a Tiso with outdoor gear if you have plenty of spare cash!
M & S Simply Food - next door to the Aldi detailed above. Good quality and reputation, but can be expensive. Worth a visit