Tips and tricks for LTC's and Postals, etiquette, and things we've learned from others before us...
~ For LTC's, you can cut 10 cards per 8 1/2" x 11" piece of cardstock by using this template.
~ For LTC's, you can cut 16 cards per 12" x 12" piece of cardstock by using this template.
~ Here's something I put together recently, though it is only the "rough draft", and my soldering skills with wire are minimal. If you know how, or know someone who knows how to solder, you can make yourself a guide that will allow you to stamp your LTC's on 8 1/2" x 11" cardstock BEFORE you cut them.
I used some suspended ceiling wire that I had on hand, cut the pieces to length, and soldered each joint one at a time. There are plenty of other wires you could use - you could cut old clothshangers, solid copper wire - any wire that is rigid enough to keep its shape yet thin enough to allow you to stamp within the 2 1/2" x 3 1/2 " area you need for your cards. You could also make one to fit the 12" x 12" cardstock if you use that as well.
~ For the requirements you need to meet to make a regulation LTC, check out Mama Cache's LTC guideline page here: Letterbox Trading Cards
~ You can also get LTC info from the AQ help pages: AQ LTC Help Page and AQ LTC Tracker Help Page