Volunteering at the 4th annual USA Science & Engineering Festival in Washington DC was an incredible experience according to the author. Over 300,000 people attended the two-day event held in April across 2 million square feet of exhibits. The author's favorite moment was hearing a little girl say it was the best day of her life in the universe, making the author's lost voice and sore feet worthwhile. The author thanks all the volunteers and exhibitors who helped make the 4th festival an even greater success and encourages planning for the 5th annual event in April 2018.