The first Christmas we were married DH bought me a chair and a half leather rocking recliner. It's very wide...we can both sit on it together with a bit of space left over. We'd seen it in a store and sat in it for a minute, and he went back and got it without me knowing a few days later.
He said that when we were sitting there all he could picture was us cuddling and reading to our eventual LO, who would fit perfectly in the space between us).
The chair is worth it's weight in gold around here now, by the way. The last weeks I was pregnant it was the only way I could sleep, and me and DS are in for at least some of every day. When he was first born and wouldn't sleep unless I was holding him and I was too scared to co-sleep in bed I could doze off in the reclined chair holding him. And sometimes now we'll both doze off while I'm nursing him...DH will come home and find me sprawled in it with DS asleep using my breast as a pillow.
What's the best/most meaningful gift you've received from your SO? (Not counting engagement/wedding rings).