I'm 58 been cleaning windowsfor 12 years using wfd,I'm still doing the same amount of work as I did 12 years ago,
.i used to be able to finish work and have some energy left to do small jobs I've cut the grass,I'm now finding when I finish work I very tired and often in bed bed 9 pm
I'm also finding the tiredness is putting me off being a window cleaner,but l don't have a choice