As you can probably tell by now, I'm a total card junkie. I'm not even great about writing cards, I just like collecting them and knowing they're there for whenever an occasion arises. And National Letter Writing Month is an occasion for letters like no other (except Christmas season perhaps). The last in my roundups of cute cards to help with your correspondence for National Letter Writing Month is three illustrated boxed variety packs, so you can choose the card that best matches the recipient!     Studio Oh! Woodland Creatures Set, $14 (set of 12), Indigo.       Vegetable Set, $17 (set of 10), RachaelAnnDesign.   Assorted Queen Set, $18 US (set of 8), Rifle Paper Co.