I like yours better than mine LenaLJ, I've downloaded it and may switch over, it looks easier to keep track of, I never thought of doing it along the top when I made mine but that seems more logical.
It does help to write things down, I thought i'd failed last night after I had caked up a child I thought ready only to realise I didn't have any oven/blocks skill on my spreadsheet, luckily when I sent her to cook it said due to her toy oven skills she will start at level 3, I must have forgotten to jot that down but I was so relieved at that message.