The New York Public Library's Riverside branch invites you to check out a necktie, briefcase, or handbag suited for a "job interview, wedding, audition, graduation, prom, or other formal event." It's part of their NYPL Grow Up initiative. From the NYPL:
Adults and teens who have low fines (less than $15) or no fines on their library cards can borrow items for a one-time, three-week lending period.
We also have information sheets on job interview tips, free career resources and suggested books, and websites and organizations that can help with professional fashion advice and attire.