It's easy to tell what songs are popular in your iTunes library - just sort a song list by Play Count, the number of times they've played to completion. Reader Steve writes in with a quick way to see ...

Skip counting is a useful skill if you need to count sets of objects, such as pairs of shoes, gloves, the wheels on a tricycle, or even money. Counting on in twos, threes, fives and tens is easy, if ...