One thing i did, which was quite helpful, was i kept a list of things to get, which i added to as i browsed the forum. I listed absolutly everything under the sun that i could possibly think of, and then some more.
Then, i went thru it again, and thought more critically about items, and if i really needed them, or just wanted them. Not everything is necessary, esp if you read some of the threads on what peoples brought, but didnt need. But, everyone is different.
Then each week, it is my target to get 2 or 3 of the items of the list, so that hopefully, by the time i finish work, i will have everything that i need. And, fingers crossed, havent forgotten anything. I even included things i needed for me, in terms of jammies, sock, etc for hospital, and breast pads.