I usually text her the same night about something funny that happened and/or was said at work, when I worked in customer service, it was a goldmine(In hindsight I wished I'd learnt all this then) or contune a convesation you were having.
Also go with a nickname(if you've got one for her already, awesome, if not make one up, I usuallygo with Doll, old school huh?)
so I'd put something along the lines of
"Hey Doll! Ok, you convinced me, I'm actually gonna watch Twilight x" (if you have been discusing films etc)
"Hey Doll! Just been laughing again about what you said earlier about that guy falling on the ice lol

xx"
Not great examples I know lol, but I've got them to work before a few times, if you can, get ahold of "The Text Book" from the Art of Charm, brilliant book btw, helped me alot recently.
Also don't get disparaged if she doesn't text back straight away, texts are things that you can come back to, I know I used to have a major problem where I'd think a girl was falling out with me, when in rality she was asleep or at work or even at the cinema.
Also, if you're looking at houses tomorrow, ask her along! Great for visualisation and imagination techniques!!!
Congratulations btw, your on your way!