Top tip… (Two for the price of one!)
Don’t clean your windows when it’s sunny, as tempting as it is. The sunshine will not so gently show you just how filthy they are… But don’t do it. Inside or out. They will look worse. Wait until it’s a grey day and get out the Mr Muscle (or newspaper and spit if you are on a budget!)
Also when you’ve got a big long list of jobs to do, try not to spend an hour talking to the window cleaner about football.