Some people use them for self-tagging. That is they give themselves a tag by pulling a bead when they succeed at a ask they have set for themselves. For example you might hang one on your fridge and anytime you make a conscious choice to have a snack (as opposed to snacking mindlessly), you pull down a bead. Theresa sometimes hangs one from her belt loop while lecturing and pulls a bead when she thinks about slowing down.
Others give tagulators to their learners so that they can keep track of tags. Some learners are motivated by completing a set of 10 beads and enjoy pulling down the beads, others need to earn something tangible when they have completed a string of beads. Here is a video that shows the introduction of a tagulator to a child who was previously receiving a Skittle (small candy) for each tag. The tagulator immediately increased the ratio of tags:candy from 1:1 to 10:1. This helps speed things up, makes the candy last longer and reduces the reliance on the candy.
You can make your own tagulators or buy them from our store.