Yes to front opening things. Breast feeding is hard enough without worrying about your t-shirt falling in your infants face.
My major problem was that we were in for two days afterwards (dd took a really really long time to wee - they thought there were kidney issues so we were going nowhere until they had a wet nappy from her). I had enough stuff for both of us for a day. I didn't have the sense to tell DH where I had stored everything in her bedroom (I was a week overdue and had spent my time lovingly re-arranging her things, hugging them and imagining the tiny baby that should be in them!). Neither did I explain that 'newborn' and '0-3 months' were different sizes of clothes, so having sent him home with bags of her dirty clothes and instructions to return with clean ones, he came with stuff to fit a much bigger infant and she kept withdrawing her hands up the sleeves, getting cross and crying.
Next time I'm packing bags of extras to leave by the front door....!
Ipod or similar, so if you are lying awake at night you don't go mad with being unable to drop off, you can listen to something.
Gas and air also dried my mouth out in a more extreme way than I have ever experienced. A way of drinking without sitting up would have been sooooo welcome.
Obviously it depends on how long you are in but I would seriously recommend a bag for labour and the immediate aftermath (both for you and baby, so one set of spare clothes for you, two sets for baby, baby blanket etc) and then putting another bag in an obvious place with stuff for someone to bring in if you have to stay longer, or decide you might like it (the stuff, not the hospital stay).