Stephen LaBerge mentions in his book Exploring the World of Lucid Dreaming a list of random "Daily Targets" that you are supposed to look out for each day, 4 targets per day, and the idea behind this practice seems good enough.
However, how effective are the kinds of targets that you can choose to accomplish whenever you want to?
For example, targets like seeing yourself in the mirror, turning on a television or handling money.
I can do those things whenever I want, and if I have a reason to do them then I could also try to do them as fast as possible, just so I can mark them off.
How am I supposed to treat targets if I know I am about to do them in a moment?
If I want to listen to something on the radio then I will be aware that "Next time I turn on a television or radio" is going to be a daily target, so it doesn't come as a surprise.