Pibcuny PI-IIA179

Pros: 1. VERY Sturdy compared to other index cards, even heavyweight Oxfords. 2. Well-printed 3. Check boxes: use them or not; they don't take up too much room 4. Printed on both sides! Cons: 1. A tad pricey, but in all fairness the price point if less than others currently selling on Amazon. (But the others are so over-priced that I would just stick with the usual inexpensive landscape cards. Oxford padded vertical cards used to be available for significantly less (and they gave 500 at that price, and in pads), but are no longer made it seems from my web search. These check-box ones are nicer paper, nicer printing, and double-sided, so price is NOT too far off the mark. And they now (12-24) decreased the list price by about 10%. Bottom line: So nice & I've been using them regularly, so I bought a THIRD set, so I'll have a good supply, in case they become unavailable -- they're that nice, and the price is within reasonable bounds.

use them with Frixion erasable pens

These "To Do" cards are perfect for every day use. I even have my wife using them now! They are thick and sturdy just right for the purpose they are made for.

Update: after using these for a while, I've concluded that the lines are way too dark and thick. They interrupt the content. Lowered the rating accordingly. I recommend using blue or red ink to stand out. That title may sound excessive for a bunch of 3x5 cards, but seriously, these are fantastic. Such a simple thing... heavy card stock, double sided, and great ink coloring on the lines and checkboxes. They fit perfectly in my pocket holder and are such a better value compared to some of the alternatives. Highly recommended.

I dig these little note cards. They have the checkboxes on the side. They are a good weight, not thin and flimsy. Also, great price for 300 qty. what a deal!