I'm 29 weeks too and I already packed everything for the baby and plan to pack my stuff in a few weeks, a couple comfy outfits and a pillow, a notebook and pen, toothbrush/brush/makeup etc, some fiber bars and other snacks, stuff for my phone and some pads in case they don't have any at the hospital.
I start doing mine around 35 weeks. As far as what to pack .. The typical essentials, toiletries, brush, makeup. Then there's music,books, movies to help pass the time or to help you stay focused during labor. Items for baby, couple outfits socks, blanket for going home. And for me I'll pack snacks like trail mix BC hospital sometimes isn't the greatest. Oh and phone chargers and a list of people to call.