First and foremost, CONGRATULATIONS!!!! What wonderful news smile
I've been a mother of three for three months now....
DD1 is 2.5
DD2 is 17 months
DS is 3 months
So as you see, they're all pretty close together in age.
As a PP said, explain things as they are going along, as you get bigger etc, and I got DD1 to start helping out more around the house (as much as a 2 year old can) just with little things like getting me a nappy if I needed one, getting a towel or a facewasher or a baby wipe, little things like that. She feels wonderful to be helping, and much as it is a small thing it really is a big help. Having the kids that bit older as you do will hopefully make it a little easier too as they can take instruction.
As for getting out and about, well, online grocery shopping is the best invention in the world and I soooo hope you have it in your area because it rocks.
The hardest thing with me and getting around is that DS doesn't really like traveling in the middle in the capsule, predominantly because the girls poke him while we're driving, so that's a challenge.
Night times are the trickiest I think particularly at the start. It's just a matter of getting yourself into a routine, and routine is a saviour. I find that bathing DS in the afternoon rather than the evening makes my life a lot easier. Might not sound like much but makes a huge difference. And I try to follow the exact same routine every night, within a half hour or so, except on special occasions like Christmas or the odd party or whatever.
Best thing is to try and stick to exactly the routine you have and 'slot' the newbie in. It might take a little while but it will work out and you'll find things go very smoothly 99% of the time.
And you can always come on here forhelp or support if you need it smile