Flowerofthewest, I do understand your choice of shop. There is an old fashioned hardware place in Stow-on-the-Wold, which I always head for first! Probably even more satisfying than the aforementioned Screw-Fix catalogue! I am not an expert DIYer, but can turn my hand to some minor repairs and maintenance, as I have the necessary tools and bits and bobs.
Setting my kitchen timer has to be in multiples of 5 minutes, and volume levels of car radio etc. only even numbers! This mild OCD does not extend to a spotless house though.
I can't do the whistle, but taught GSs to burp on demand -I didn't even know I could until the request!