Interviews. Lectures. Sales pitches. Projects. Games. Customers. Products. Lessons. Calls. Updates. Visits. Days off. Blog posts. Songs. Batches. Parties. Drinks. All the things you do, create, consume.
Take heed of Jay-Z (amongst a gazillion others).
Treat your first like your last and your last like your first.
How else can you be sure you did your best?