I was given a 2nd hand port-a-cot for home and we have used it when we go away to our caravan for A's outside time (we have a bed built into the van for her), it's great as a spare if you have other little ones (mother group) come over and they might need somewhere to sleep.
I also found it handy for outside time when DD was a little younger, could put toys in there etc and bought a fly net that fit over the top.
My stepmum has one at her house and we use that as DD's bed in our room.
I definitely still get a lot of use out of mine and A is over 1.

Other things that are handy could be:
* Battery operated swing or a bouncer - you might already have these
* nappies in the next size up?
* Rocking chair for you for b/f night settling etc - if you don't have one and have room?

Hmmm i can't think right now, all the things we got with A after she was born i hadn't even thought of, now with #2 on the way i'm brain dead... lol
Sorry HTH