break the day into chunks of time so that you only have to get through breakfast, then until lunchtime, then you only have to get to teatime and then, finally, only so many hours until bedtime. It's easier than thinking, 'Only 9 hours until bedtime!'
freezer meals, ready meals and sandwiches for you and toddler
hot drinks in a flask so at least it'll stay warmer for longer
try to get out if poss so your toddler can have a run around (doesn't have to be anywhere great - a walk around the block might help)
TV/iPad/books/special toys for the toddler when you're feeding the baby - keep him/her occupied as long as possible so he/she's not climbing all over you
try to keep your toddler in their routine as much as you can but don't worry if things go tits up for a few days - a new routine will soon emerge
when both cry at the same time, go go the toddler first because they need to feel wanted and important - at least for the first few weeks anyway
drop your standards re the housework but try, if you can, to tidy up as you go so the house isn't a huge tip by the end of the day
try to get ready before your dh/dp leaves in the morning - that way, you're not still in your PJs by bedtime
keep the changing bags topped up and stocked by the door so that you can just grab it on the way out - makes getting out of the house take a bit less time
good luck - I'm sure you'll be fine. It's tiring but you'll soon settle into a routine and it'll be 2nd nature
