My favourite aid is my 'dish drawer' dishwasher. It rolls out like a drawer and I don't need to bend over to load it. Great if you have back problems.
http://www.fisherpaykel.com.au/dishwashing/?productUid=35684FA6-A63E-8F3B-2987C9764BF9B74D
This is one of my favourite little aids. It makes it so much easier to open jars and it is sooo simple.