Actually, before my current streak, my record was 8 days haha. I think one needs to zap others at least 100 sats per day in order to keep the hat. So, I have two rounds of zapping - once in the morning and another time in the evening - just to play safe. That way, I will definitely spend more than 100 sats. Posting every day helps. When I reply to people who leave a comment on my posts, it is easy for me to zap to keep my cowboy hat. Hope this helps!