Counting on fingers
Since it was brought up, does anyone else here use a method for counting to >10 on their fingers? When I was young, I was taught how to count to 99 on my fingers very easily, and it has stuck with me ever since. You count to 4 like normal, then 5 is the thumb only. 6-9 are the same as 1-4, but with the thumb up too. One hand is the units place, the other is the tens place. With practice, it is completely natural. In my experience, counting 1-99 on your fingers comes in handy much more frequently than 1-10, but counting 1-9 on one hand is also convenient at times.