Now obviously I wouldn't want to wish constipation on any baby, but DD has 4 or 5 pooey nappies a day, with at least one of those overflowing and ruining her outfit everyday. Dealing with a pooey nappy only once every few days sounds like a distinct improvement!
Dream I didn't realise co-sleeping was a SIDS risk if there are no smokers in the household! 
Thank you for warning me. This should be a sufficient push to get me to use the bedside cot more religiously rather than just letting her sleep next to me. Might have to ban DH from co-sleeping as well, he gets far more exhausted than me (despite having more sleep 
).
I tend to put DD to sleep on her side now. I did a lot of online research and confirmed that sleeping on their side is as safe as sleeping on their backs, with the big proviso that they don't roll onto their stomachs. DD gets really uncomfortable on her back, and she throws up frequently enough that I worry about her on her back. So far whenever she has rolled off her side it has always been onto her back. If she starts rolling forward I would stop putting her to sleep on her side.
We've agreed to give up on our failed bedtime experiment for the next few days, and just observe DD's natural sleeping patterns. So far she doesn't seem to have any sort of regular pattern, which is almost certainly because we have no sort of regular pattern to our days. We're making a conscious effort to stay in more, and get home earlier, for the next week, to see if we can identify when DD wants to be asleep. We're hoping this will mean we can make a more educated attempt to adjust her sleeping patterns the following week, rather than putting her on an arbitrary schedule and then killing ourselves being up all night trying to get her to sleep when she doesn't want to.
Also, there's absolutely no way I could bear to use cry-it-out techniques on DD at this age I suspect that won't change even when she's older but DH is keen to try it out after talking to the other new Dads in our NCT group. I need to get DD on a better sleep schedule asap to avoid having DH getting too hung up on the cry-it-out option. Otherwise I predict we'll be having even more arguments than usual...
Also, Dream, I do think Portland is the largest pacapod. I'm pretty sure I confirmed that using a tool on their website to find which pacapod suits your needs. It's definitely big enough for one, but I seriously doubt it could cope with more than a quick lunch trip out for two babies. The feeder pod only fits two bottles, the change pod did hold 10 changes when I needed it to though. The main part of the bag holds one change of clothes for DD plus an extra top for me. Would that be sufficient for you and the twins?