Union apprenticeship sign-ups near Toledo - what worked for you?

A local apprenticeship programme is taking applicants for the next intake. There are 12 people counting on me, so I am trying to be careful. Classes are in the evening and work is during the day. What do you wish you had known?

Keep everything in writing and save the confirmation numbers. It saved me later.

Bring your transcripts and any proof of work history. They asked for both in the interview.