H usually only feeds from one side, so am thinking of expressing if there is anything left from the side he has fed from, and/or from the side he hasn't used, after his morning feed, as usually then have a 3-4 hourly gap before next feed, so am hoping this will be enough time for breasts to refill for next feed?
ok - how I built up a small stock (about 8 jars of 6oz) was to express from the side he hadnt used first thing in the morning. however, I wouldnt have enough milk 3 hours later and so would have to double booby the next feed
Also wandered when H is fed with expressed milk when I'm out, will this affect my milk supply greatly, if it's only occasional times? Should i express when I get home to make up for the feed I haven't done?
If it is done regularly yes, because your boobs think they dont need to feed at that time. However, on occasions no, but you may feel uncomfortable as your boob will be full & ready to feed. Expressing when you get home is a good idea because (a) it will keep your supply up, and (b) help you feel less uncomfortable. Alternatively, depending on the size of your handbag, you could consider pumping & dumping - ie take a handpump, nip into a private area, pump for 5-10 minutes, and discard the milk
Also if dh does do a couple of eve feeds per week, will this affect my milk supply alot, as well?
Yes, if it is regular and you dont pump - but only for that feed - the rest of your days feeds wouldnt be affected. So, if you regularly didnt feed at 10pm but gave a bottle then your body wouldnt produce milk for that 10pm feed after a while. However..... if you regularly expressed extra in the morning instead then your body would produce enough extra for the expressing instead.
Was also wandering about the best way to introduce a bottle to H, with the milk? Have the clsoer to nature bootles, and was thinking of starting off with a small amount and offering it halfway through a feed?
wellll...... I expressed 6oz just before a feed one day, and put them into two bottles of 3oz each. With my experience with DS#1 who preferred the teats made by a company called Pigeon rather than the Avent ones, I used the smallest hole teat possible as this has the slower flow and is closer to breast flow. I did a daytime feed (eg the 9-10am one) as then your little one isnt too tired and is quite open to new experiences. Later in the day is (a) harder to pump and (b) harder to introduce a bottle to a cranky little one.
Then I got someone else to bottle feed whilst I was on standby to feed if it didnt work. I didnt heat the milk as I had only just expressed it. DS#2 quite happily took the entire 6oz - 
From personal experience, I find my supply is great first thing in the morning 6-8oz takes 10-15 minutes, but by the afternoon I'm lucky if I can make 4oz in 25 minutes.
csam - that squirty vs running on empty thing is common - at least for me! in fact it is almost the counter-intuitive - a big huge booby and DS often only takes a small amount and I'm left with a still rather full boob. A small booby, and if he unlatches mid feed for a belch I will see his mouth full of milk!
babies eh?!