Am after a neutral stony greige that I can pretty much paint the entire house.
After dozens and dozens of tester pots, have decided that F&B Skimming Stone is THE colour for our hallways, landings, stairs, kitchen and office. We have a three storey house so we'll need an obscene amount of paint for the hallways and stairs alone.
Have just priced up how much it will cost to do everything in Skimming Stone - bleeding heck! 
Anybody aware of any colour dupes for Skimming Stone from other brands?
Have heard bad things about Valspar so wanted to avoid them if possible.
Alternatively, has anybody used the Dulux Mixlab at Homebase with any success?