Adopting a kitten is not like having a baby. Actually its more like a kindy kids first day at school.
Despite Genie advertising on the bus above, do not run out to the pet shop and spend hundreds of dollars on unnecessary items...talk to the breeder. For example ragdolls don't sleep in cozy cat beds, that would be waste of money! Also its better to keep as much the same as possible when you bring a new kitten home, so find out what type of litter the breeder uses and get advice as to diet. Kittens prefer cardboard boxes and old socks to many of the cat toys, and so called 'scratching posts', especially the small ones, are a waste of money. A good solid cat tree however is the second most important thing to shop for (not a cardboard one) but you dont need it on day one. Also, its a piece of furniture in your house, so take time to choose one you like and that fits in your home!
Kittens are curious creatures and will explore their new home. So if you have any precious 'ornaments' you should take them down or put them where the kitten wont knock them over.
Don't worry about power cables too much, however phone cables are fun things to play with and kittens have sharp teeth....best not to leave them dangling!
Cut flowers can be a problem, especially lillies, which are highly toxic to cats...so ask for chocolates for Valentines day instead :) Don't let the kitten have them either!
The best thing you can do is to carry on as normal...you don't need to change or do anything different because that'll just mean another change for the kitten later. Just be yourself and let the kitten join the family. Kittens are flexible and they will adapt and find their plac and together you'll figure out routines as you go.