Just re-read my post from last Thursday. Of the gadgets I bought only the dressing stick proved to be of any real help. It is good for pushing socks off at the end of the day, pulling on trousers and lifting shirt or jacket over left shoulder. The fork is no good at all, being less efficient at cutting and stabbing than a standard fork.
I've also tried one of those devices to aid putting socks on, but it was not much help. It really requires two hands to get the sock onto the funnel and two hands to pull it over the foot. My left hand no longer has enough power and grip to manage either of these things, so the sock-puller is fine in principle but fails in practice in my case.
I think the 'try before you buy' policy is the best for any aids.