Concurrently, I've been reading this book that I picked up from Home Bargains for £1.
I'm quite enjoying it as books about cleaning go. It's very informative. One thing that I think I read here was about ways to clean your dishwasher. I didn't actually act on it until I was doing a Flylady 15 minute declutter in my cupboard where I keep all of the products I use to make natural toiletry products and came across a part used box of citric acid. On the back it suggested using it to clean out your dishwasher periodically. You fill the little box where the detergent goes with citric acid and then sprinkle more in the bottom of the dishwasher and put it on your normal cycle (empty).
I did this this morning and the results were great. It now almost looks like new inside. I was super impressed and will be doing this regularly from now on as it is such an easy way to get a good result. Here's a picture.