Hunny I have a list somewhere for what I took in last time but TBH if your mum is near the hospital and if you have visitors you don't need to worry about forgetting anything. eg, my DS was tiny so didn't fit the nappies or clothes I'd brought in but MIL went out and got us tiny baby clothes.
I'd say take things like nappies, maybe a wee bottle of baby shampoo (your baby might not even get a bath though if you are out quickly), don't think you'd need sudocrem (I only use it if there is a rash), also I didn't use wipes on DS for ages cos they have really sensitive skin, water and cotton wool is the best (hospital may have this). Take some huge sanitary pads although my hospital provided these too, it's prob worth checking out what the hospital have so you don't need to take things in unecessarily.
Ummm, clothes for you and baby, for you take 2 nighties (one to give birth in and one for after), I got cheapo ones from Primark with front buttons for BFing, they were fab! Also get some cheap big pants, don't buy crappy paper disposables! Take some day clothes for you (comfy things like joggy bottoms etc). Baby will need a few vests and babygros and if you like a nice going home outfit. I took some paper and pen and wrote down my experience of labour, you quickly forget the details and it's funny reading back now. Um what else... some boiled sweets to suck through labour, lip balm as gas and air can make your lips a bit dry (although I didn't find this), hairbands to tie hair back, some nice toiletries, can't think what else really but will let you know once I find my list!
I've not even started getting things for my bag so better get a move on! BTW I also took my ipod and mags but I didn't use either of them, too busy having a baby!
Oh and most importantly- your camera!!!!! (amke sure it's charged)