Cheeptrick, do you want to put off the potty training? I've always heard that it's best not to try when there's been about to be some upheaval in the child's life, like moving house or a new baby, so I didn't try with my DS till he was nearly 3. It could just give you one less thing to worry about, and one less thing to fight with DS about. I've had an up and down relationship with my own, so know it's very hard in those periods when we are at loggerheads. DS had a really bad period when he was about 19months, and I thought the Terrible Twos might last a year
, but then he had one of those language leaps, was much less frustrated, and was much better again until about 2.6, when there was some new frustration (can't remember what). At about 2.9/10, he was very ill for a week or so, and seemed so grateful to me for nursing him through that we were all sweet again, so I ruthlessly took advantage of that to potty train him then!
You sound very organised, by the way. We had a HV come round recently (new housemove), and she was smilingly telling me I ought to have my bag packed now (whereupon I thought "piss off"). I hope your lot are not trying to make you feel guilty, but if they are, just think about how they would look at someone like me, without enough maternity pads, or TENS machine, or . I haven't even bought any baby nappies, so if DD comes now, it's "real nappies" (folded muslin + bin liner
)! However, the Homestart volunteer should hopefully be doing some cleaning for you, which sounds great! 
ZombiesAteMySorelip, that username is reeeeeally disgusting - well done! 