Not only are tab dividers hard to find this time of year (everyone needs multiples!) but they are expensive. I was so excited to see on Amazon right now you can get Avery Big Tab Insertable Dividers, 5-Tab Set (11109) for just $0.99! This is a great price.
This will ship free with Amazon Prime or qualifies for free Super Saver Shipping with a $49 purchase.
Note: Amazon prices and promotions can change at any time. The price(s) listed in this post is/are subject to change.