definitely make the blanket! your coworker who said people don't need "extra" baby blankets doesn't know what she's talking about. the hand-made blankets are the best. even though i wore my babies all the time, if they fell asleep in the car seat, i would keep them in it, and i loved crocheted blankets for draping/tenting over them while they slept, so people wouldn't touch.
even now (toddler & preschooler), they still love the special blankets people made for them - baby blankets are just the right size to add a little color at the foot of a twin size bed! they also get played with in the dolly cradle, and we even have one that someone crocheted for me when i was a baby. it's a really precious gift.