Actually, this is always a good idea when you're stuck for a gift. Boxed stationery is perfect for the shut-in, the aunt or grandmother you don't get to see as often as you like, or the man you'd like to hear from more.
We can make no specific recommendations simply because there are so many from which to choose, depending on the recipient. But you know, it's a gift that's always appreciated.
If you want to know what we think is best, look for Crane, Renner-Davis, and Eaton. Recycled Paper has some humorous styles. Hallmark has some that are too cutsie for words (we're getting sick of Snoopy).