To ping off of what
@Chase is saying here, some women like to be "warmed up" first for it as well... which is something that you can do throughout the day and even make her end up being the initiator for it.
So if you play with her, here and there, throughout the day, she's more likely to be primed and wanting it later on.
Walking up and just smelling her neck while she's doing something or working.
As you walk by her, give her some "I want to fuck you" eyes and if she asks what it was about, tell her that you'll tell her later.
Tell her that you need to tell her something and then get close enough to whisper into her ear, take a deep breathe, and then say, "you smell so fucking hot right now" and then pull back and continue the conversation like nothing happened.
When she's in the kitchen doing something, just walk over to her and bite her neck or pull her hair (in a sexual way) and then just walk away and go about your business.
Send her a text message that says, "I want to do dirty things to you" and she asks what, don't tell her or just totally change the subject.
If you have a "this is when and where and how we're going to have sex every day" it's going to get boring, stale, and feel like a chore, especially for her... and depending on her sex drive and stress levels, it could turn into something she doesn't want.
Instead, you want there to be an air unpredictability or uncertainty with it. That's what creates and drives passion and excitement in a relationship.
Most people don't do that because it takes a lot of time, thought, attention, and habit in order to constantly change things (I've been there).
You want to stay away from everything being completely routine though, if you can.