A TV! (-$220)

You point eagerly at the catalogue and grin up at Darla, hopping on your heels in excitement. Darla purses her lips and nods in approval, the first sure sign of communication you've ever seen from her. Nice!

With that, you hand over the money and Darla arranges for it to be sent to your room. You're gonna get so much work done now! Especially with how important it is to take breaks in your work.