I built my first portfolio in Adobe Illustrator - before I'd heard of InDesign - using "print layouts". I printed each sheet and using folding techniques to best simply production and presentation. My professor said it was the best portfolio he'd ever seen. It showed intent, rigor and personality.
I flew myself to Philadelphia on a waitress budget, I pricelined a hotel and visited OLIN's local projects before my interview. Even though I thought the interview went well, I did not ultimately get the job.
Go beyond the spiral. Your portfolio shows who you are as a designer.
Apply with intention. Only firms you would personally be proud of.
You are interviewing the firm - not just the other way around.
Don't just go chronological. Of course you've heard about the beginning and the end being the most important and I would say it's true
Think of small to large
Include art work - sketches, photography, collage, paintings, etc
Appreciate the white space
Create summary of notes along the way and save high res files
Don't forget about the process sketches. Reviewers love to see this.