How many of us that keep an ideas notebook have similar ideas to these? I add to my idea notebook a couple of times a week without judgment of the idea itself.

How many of us that keep an ideas notebook have similar ideas to these? I add to my idea notebook a couple of times a week without judgment of the idea itself. I do this as a bit of melon training, encouraging creative thinking. The fun part is reviewing these ideas. Finding an idea you had that resonates in someone else's successful startup is cool. More than anything else it reminds me that implementation is key, the idea is the catalyst.