On select days through January 20, 2018, the general public can go fishing for free. (Meaning you can fish without purchasing a license for your state.) That's the best free fishing deal we've seen. (Note that Hawaii offers free fishing year-round, however, you'll need to supply your own airfare and hotel.)
Of note, Individual states may have certain restrictions and other regulations that may apply, contact your state fish and wildlife agency for specific state regulations.