Hey Briony!
Welcome to BB!
I Bottle fed my first two. We would just make up the bottles for the 24 hour period first thing in the morning then put them in the fridge for the day. Really easy (so long as you don't lose count with the scoops)! My handy tip is; get someone else to do it!!! LOLOLOL! Or like Vanita said, you could just make up a jug of formula, just whisk it really well.