My mom's friend taught me to solve a side in the airport when we were going to alaska for a group trip. When we went to Taiwan a year or two later, he taught me the first layer (instead of just a side) and the second layer. When I came back, I noticed that many of my friends in Chinese school were also doing it for fun, and I asked one of them to write me a paper for the last layer. They used the method that comes with the storebought rubik's cubes. I sat at my desk the next weekend and tried to do it with the sheet in front of me, but just couldnt get the last step to work (they only wrote R' D' R D and didn't tell me what to do with it), but after a few tries, I, with a stroke of luck, had a skip of that step! I remember running from my room and screaming to my parents, but I don't think they really cared (they still don't). Oh, BTW, I was only 8 or 9 years old at the time. However, I don't remember when I solved it without a cheat sheet, so I must've not been particularly happy about it.