Move over Hump Day - today is also National Taco Day.

If you're one of those who loves a crunchy (or soft) shell stuffed with meat, cheese and all other sorts of good things, today is your day. Oct. 4 is National Taco Day and to celebrate, restaurants are offering deals and discounts on the delicious treats.

Last year, Americans ate more than 4.5 billion tacos. To put that in perspective, that's 490,000 miles of tacos, enough to take you to the moon and back, or 775-million pounds, equal to the weight of two Empire State Buildings.

Here are some of the best deals, discounts and freebies for National Taco Day. As always, check with your local restaurant to ensure they are participating:

Applebee's - Enjoy a $1 Dollarita with your taco. Offer good throughout the month of October.

Babalu Tapas and Tacos - Celebrate National Taco Day with $2 tacos throughout the whole day. The menu will also feature a special fried chicken taco, available for one day only.

Chuy's - Celebrate National Taco Day by adding a beef taco to any meal for only $1. You can also ask your server to "taco bout it" for a free crispy beef taco with entree purchase.

On the Border - Enjoy 50 cents tacos all day.

Red Robin - Enjoy a Taco Tavern Double burger for $6.99.

Taco Bell - The national chain will offer a $5 box of tacos on Oct. 4. The box includes four classic Taco Bell tacos, including a crunchy taco, Nacho Cheese Doritos Locos tacos, Cool Ranch Doritos Locos tacos and a Fiery Doritos Locos taco. The tacos will be wrapped in special National Taco Day paper and included in a festive gift box.

Taco Casa - All tacos are 99 cents on Oct. 4.