I sometimes do and I did just a few minutes ago as I’m typing this. I decided 5 out of 7, whether or not I was going to go to a chinese buffet today. The coin decided 5-3, that I will. Then I wanted the coin to decide if I’m going thrifting today and with a landslide of 0-5, it didn’t want me to.
And do you stick to those choices?
Since I rarely have coins handy, I use a clock (if I don’t know the current time, obviously): “If the minutes are odd, yes. Even? No.” (Eg. 2:53 = yes, :54 = no).