DS is 5 weeks old now and I just thought I'd share what I've found useful and what I haven't used at all because I really liked it when I was pregnant and new mommies did that!
The Fisher Price "My Little Lamb" Cradle-n-Swing (DS sleeps twice as long in there!)
Halo sleep sack with swaddle feature (Makes swaddling easy)
Infant gowns for sleeping (makes late night changes a breeze!)
Boppy pillow (No explaination needed!)
Happiest Baby on the Block DVD (DS responded very well to techniques)
We haven't used....
Travel bottle warmer
Newborn size shoes
Hope that's helpful