A handy gift is a toiletry basket for the baby...include snot sucker, sunblock, tylenol/motrin, baby gas drops, lotion, poison control information, some wipes, nipple cream, breast pads, nursing tea, butt cream, baby wash, etc. Useful and great to have around. My friend gave me this, and it was the best thing ever.
Or food. Maybe gift certificates for local places that do takeout? Or a coupon for dream dinners or equivalent?