Since this literally happened to me about 5 minutes ago: Cracked iPhone screens are an all-too-common occurrence. Have it fixed at an Apple store and it'll cost you at least $200. But do it yourself and you're looking at around $20. Pin: Just in case I ever need this!
Printing from an iPhone is easier than ever, even if you're in Katmandu and your printer's in Kalamazoo. That's thanks to increased AirPrint compatibility, manufacturers' and third-party printing apps, and printers that will automatically print out documents emailed to them.