How is conducting a statistical analysis like riding a bicycle?

Bill Greco has used this question in his classes, and here are some interesting answers, ending with his two favorites:

• Once you learn how, you never lose the skill.
• Sometimes the tools are expensive ($10,000 racing bicycles; $100,000+ annual fees for some statistical packages), sometimes the tools are cheap or free.
• There are experts at both activities, and there are novices.
• Both take a few minutes to learn, but a lifetime to master.
• Both activities can be either leisure activities, or professions.
• Technical experts in both fields love to talk “shop”.
• Both activities can be dangerous.
• You can customize your tools for both activities.
• You can read books on both activities, but usually the best way to learn is to perform the activity.
• Some projects (trips) are short, while others are long.
• Accidents can happen with both activities.
• There are journals and books devoted to both activities.
• There are professional organizations for both activities.
• Many practitioners have more than one tool (software package or bicycle) in their arsenal.
• Many practitioners have a favorite tool, which they use whenever possible.
• There are specialties in both fields.
• Some practitioners disobey the rules.
• You can make money at both activities, or perform them only for fun.
• Each activity has extensive jargon, which experts love to use to impress novices.
• Both have long histories, with famous practitioners.
• For both, the tools have evolved from primitive to modern.
• There are strong disagreements among the experts.
• Both activities can be exhausting.
• Both activities can make you swear.
• They both make you fit. 
• For good statistical power, you usually require large sample size; for good bicycling power, you usually require large ample thighs.