tawdry welcome onto the bus and as our newest joiner, you get our comfiest seat with the best view out of the window.
legal and venus speak very wise words indeed. I was unprepared for how crap I felt after stopping drinking, and hadn't thought enough about vits and also about sugar - you may find your body really craves the sugar it used to get from alcohol, so maybe have some sweet treats or fruit around to deal with that. Here are a few other tips I've found helped me:
If out for dinner, ask the waiter to remove your wineglass from the table at the start of the meal to avoid the "accidentally filled so I may as well drink it" temptation.
Find some lovely non-alcohol cocktails or drinks to have when you used to "enjoy" a drink - for me, I love a drink on the balcony after DD is in bed on a Fri/Sat night, so I now have a pomelo juice with crushed raspberries and soda or fizzy water (goes all pretty and layered into different shades of pink 
). And I have a bowl of apples on the balcony table - when I want a drink, I pick one of those up and munch away instead
Cooking - always a problem for me, since I love to cook and regularly got sloshed before I even served dinner. Avoid alcohol soaked food if you can. If you need alcohol in food, buy small bottles (yes, they are poorer value compared to big bottles, but think of how expensive it would be to buy a new liver [only half joking emoticon goes here] and suddenly they seem v good value indeed). If any is left over, no matter how little, it either gets thrown straightaway, or if like me you are a miser and can't abide waste, diluted with a bit of water and salt (rendering it undrinkable) and straight into the freezer in an icecube tray for the next time you cook.
Re DH - my husband is also giving up at the same time (he is in AA), so i have no wise words to offer there. Except maybe one, which is that you have to become selfish for a bit and focus on you and your needs (wise words from Mouse to me early on in my journey) So I actually don't get involved in my husband's plans to drink or not drink - the first time we've jointly discussed strategy is for this weekend's dinner party, for obvious reasons. I don't know if he's had a drink (I don't think he has) and I don't really care - because I'm doing this for me and his problems have to remain his own problems for the time being. I also don't think I could bear the sadness if he made more failed promises to me (we've been here with his drinking a few times before). So you need to detach from your DH a bit atm - if he pours you a drink, just get up straightaway and pour it away or back in the bottle. FWIW, my DH and I became each other's enablers with drinking - we became the reason why the other didn't stop. So he might surprise you yet.
notevenamousie - I actually think I may have been a bit blind to the fact that alcoholism is clearly rife here. Confided in my two closest friends here about the not drinking, and they immediately starter saying, oh well, of course so and so had to do the same thing last year, and so and so was in rehab so also doesn't drink. I think I just didn't notice the non-drinkers or low-level drinkers, which also gives me hope that others won't notice me so much or make a big deal out of it.