Ziplock Bags

I homeschool therefore I use ziplock bags.
I try to avoid going to Costco more than once every 5-6 weeks.
You see, I'm one of those people that goes in to buy the "staples" and comes out with two carts of stuff that I NEED----in bulk size of course.

If you have an Executive Membership, our local Costco will allow you to place your order by fax and they will pack it up for you to just pick up the next day.

I cannot tell you how much I LOVE this program.

First, it cuts a good hour out of my day; Secondly, I save money because if I'm not cruising all over Costco then I'm only buying what I faxed in---thus "saving" money in my own twisted way.
It's a GREAT concept and one that I obviously don't take advantage of enough, since I still have the spoils of my last trip to Costco (6 weeks ago) in the back of my SUV.

Well, when making out my list today ( in my neverending quest to be Holly Homemaker) I realized that I need ziplock bags----AGAIN.

How could that be?

Upon further investigation I noticed it's because I use it to bag just about everything in my homeschooling arsenal of:

Math manipulatives,
Chalk,
Assorted flash cards,
Magnetic letters, etc.

Looking into my children's toy box I noticed that I have obviously passed on the "ziplocking-gene."

Either by nature or nurture.
Whichever you prefer.

Are you a Ziplock addict?
Am I the only one?