I never completely solved a Rubik’s cube. I got it to a point, thought with a characteristic smugness “I can do this” and then wandered off to do something else.

But look at this: JP Brown’s Serious LEGO CubeSolver. A beautiful piece of LEGO Mindstorm building plus some software that can solve the cube. Pop in the cube (after some necessary lubrication to make it turn easily) and off it goes.
(thanks Joi)
I did solve the cube a long time ago. As usual, it was at a period of high brain activity – I was studying for exams, and solving the cube was my break from studying. I also learned to beat my father’s chess computer while studying
Not sure if I could do either now mind you…. :->