Do I have too much in my hospital bag for labour?

That sounds about right.I've had six children,5 normal births and 1 c section which I ended up being in hospital a week.Don't worry your husband and visitors can bring any thing in for you if you need to stay in more than a few days,and for twins it sounds enough.My first baby manged to wee,poo and be sick on his stuff every hour or so.The only thing I would say is to pack more knickers,the first couple of days you bleed really heavy,if you are having a c section I would buy big granny pants(gross to look at I know)but they won't rub on a c section scar while smaller bikini style pants will.I was grateful for having these with my section and ended up wearing them til my scar completely healed as I couldn't stand anything rubbing on my scar,jeans etc...were out for a month too.Also pack 3 packs of sanitary towels,personally after using maternity pads with my first baby I found them rubbish,I was wearing 2 or 3 at a time and every 15 minutes my pj's would be soaked with blood.Every baby since I've bought normal sanitary towel usually Allways night time ones for heavy flow and these have worked brilliantly but it will amaze you how many you go through.Best of luck with your twins,how lovely,x