Anytime you have to ability to support your local libraries, please do!
For example many of the libraries near me have books, movies, cd, etc that you can buy in the lobby for low cost.
You can also, fill out a donation form and give any amount that you are able to give.
The library closest to me sells reusable bags with the library logo on it. The one I bought was $5.00.
So I hope you enjoy the few tips that I gave regarding the supporting the local libraries.