Development is similar to an exercise program.

Twenty minutes of aerobic exercise every other day will get you into shape.
That's about five hours a month. However, if you spent those five hours
one Saturday a month in a concentrated burst of strenuous activity,
you wouldn't get fit. In fact, your body would probably suffer more than benefit.
Similarly, one intensive training program each year, with no practice, reflection,
or support back on the job will rarely yield true development fitness.

Development activity has to become a regular part of your daily discipline.
Since you are already busy, you need to guarantee that your time is well spent.
The easiest and most effective way to develop is to chip away at it in small,
bite-sized pieces. Even five minutes a day, used wisely, can make a tremendous difference.

How can you spend that 5 minutes a day for your development?
And, how about another 5 minutes a day for your team's development?