Multi-select problem: How does the next paragraph end?

How to have a chocolate slumber party
Make sure it's okay with your parents.
You don't want to plan everything out and then have your parents say no. Before you do anything, check with your parents! Then, you are free to start preparing.

(I). If you need a piggy bank, you can always have small plastic bags lying around on your desk. You can use this to start digging around for old wrappers, old tidies, old candy bars, etc.
(II). You don't want to ruin them by getting over your aversion to a chocolate party! Check on the stove, microwave, and toaster. If you cook the same amount of chocolate as your parents, that's great.
(III). It can help to have an incident with your parents before you plan. It will give them an idea of what you think the party is going to be like and she will change her mind! Ask if you can make or buy some brownies and let your parents know.
(IV). Check if any of your friends are allergic to chocolate. It's going to be pretty hard on them while you're munching on your mars bars and they have to sit in the corner eating lettuce.
(IV).