Work out the real unit cost first
A box of 40 cards for $18 sounds better than a box of 12 for $9, until you notice the first box has no envelopes and the second one does. Divide the total by the number of cards you can actually mail. That number, not the shelf price, is what you compare. I keep a note on my phone with three figures: price per mailable card, price per envelope, and shipping cost per order. It takes a minute and saves money every time.
Cheap does not mean thin
Card stock is measured in gsm, or pounds in US listings. Most discount multipacks sit between 200 and 250 gsm. That feels fine in the hand but can show bleed-through if you write with a marker or print at home. If you plan to write a long note, look for 250 gsm and up. Below 200 gsm, the card feels like a flyer, and people notice.
Where genuine savings come from
- Off-season boxed sets. Holiday designs in January, Valentine designs in March. Retailers clear stock rather than store it.
- Blank-inside multipacks. Printed verses cost more to produce, and you rarely use all of them.
- Bulk personalization. Many printers drop the per-card price once you pass 50 units and hold it flat after that.
- Digital downloads. Cheap per card, but you pay in ink, paper, and trimming time. Do the math before you commit.
- Gift sets with fewer parts. A mug, a card, and a box beats the same set with a ribbon, a tag, and tissue you throw away.
Parameters worth checking before checkout
- Card size. A6 (4.5 x 6.25 in) fits standard envelopes. A7 needs more postage in some cases. Non-standard sizes cost extra to mail.
- Envelope included or not. This is where cheap listings hide the cost.
- Print method. Digital is fine for small runs. Offset looks better on solid color blocks.
- Paper certification. FSC labels mean the pulp came from certified sources, which matters if you sell to corporate buyers.
- Personalization fees. Some sellers charge per name change, not per card. Ask before you upload a list.
- Weight. Heavier stock pushes a stack of 20 cards into a higher postage bracket.
Pitfalls that cost more than money
The biggest trap is not a bad price. It is a listing that offers gift card codes, card numbers, or bulk codes at a steep discount. Those are almost always stolen or already spent. Treat a gift card code the way you treat cash: whoever holds it can use it. No legitimate retailer sells card data, and buying it puts you on the wrong side of a fraud case, not just a bad review.
Other common problems:
- Stock photos of licensed art. If the seller cannot show a license line or a brand name, assume the design is copied.
- Sizes that look standard but are not. Check the dimensions in inches and millimeters.
- Shipping estimates that ignore weight. A 100-card order ships as a parcel, not a letter.
- Reviews with photos only. Read the ones that mention stock weight and envelope fit.
Before you click buy
Confirm the per-card cost with envelopes, check the gsm, confirm the size against your envelope, and read the personalization terms. If a price is far below everyone else and the product is a code rather than paper, walk away.