My top tips (my two are 11mths apart and im a doula):
Rome wasnt built in a day - dont expect everything to fall into place after a week or two
Get as much help as you can in the first few weeks, so you can all find your own routine
Dont presurise yourself to be 'perfect' - let the housework go, make sure your freezer is stocked b4 baby arrives etc
get a sling - invaluable to being able to soothe baby whilst entertaining elder child, and you can also breastfeed whilst baby is in the sling, so you are more 'hands free' for older child
get a special toy/book that only comes out at bfing time if older child is getting anxious etc, make it a special time for them too.
give yourself a break - when baby sleeps int he morning, have a cup of tea, read toddler a book, and try to relax
stop looking at the clock for feeding times, you only put pressure on yourself.
if you have a partner around try and make one special time int he day for you and your older child - i.e. bedtime story/bathtime - just ten mins for you and them
get some bf'ing support if needed, especially if baby seems tob e fedding every hour etc - check the latch etc. things become easier once feeding is established and you are less stressed about that.
get both children out for a walk/park once a day after the first few weeks if you can - everyone needs some fresh air - not to mention seeing another adult face!
dont worry if your (now) tv free toddler watches more tv in the first few weeks, if it helps you get by and manage - it wont hurt them for this period.
leave a list of shopping/tasks easily visible for visitors - when they ask if theres anything they can do - show them the list! everyone wants to help, let them.
Let the older child cuddle/kiss the baby - its suprising how 'hardy' babies can be, obviously you will have to watch, but them them touch them otherwise they can become resentful.
ENJOY! you will enver get those precious first few weeks back.
Cxx
p.s. hope some of these help.