Print the finished, proofread pages of your magazine and collate them in the right order. If you've gone the hand-designed route, write out a final draft that takes into consideration the space you plan to use to add pictures, titles, borders, etc. The "guts" of your magazine are now finished and ready to be bound with a completed cover.
You'll have no problem getting your pages in order if you've drawn them up by hand. Printing them, however, can cause complications depending on how you plan to bind the magazine. If each piece of paper will be a separate page, you can organize the pages by hand once they're printed. If you choose to fold the pages in half and then staple them to make the binding, you'll need to be certain you have articles and images in the correct order in the word processor, and that you're selecting the "print for publishing" option that arranges the document by page number. If you have a little money to play around with or need a more polished look for a school or work project, you can take your printed pages to a copy store like Kinko's or FedEx Office and have them reprinted on glossy paper like the professional magazines in the supermarket. This will be more expensive than printing the pages yourself at home, but the luster of the finished product will be worth it. They can even help you bind it there in the store.