Is it possible to replace the broken glass on a smartphone or do you have to buy a new one?
If the phone is still functional despite the damaged screen, you can probably get it repaired. If you do not have an insurance policy, you have several options.
If you live in an area with an electronics store nearby, ask about any phone and gadget services offered. Prices for screen repair can average from $100 to $200, so factor in the age of the phone and the time remaining on your wireless contract before deciding whether to get your device repaired. The iCracked site might help you find a local technician.
If you do not live near a repair service, mail-in shops with nationwide service are another option. Several can be found online (like iResQ or Mission: Repair) and you can call the shops if you have specific questions before you ship your broken phone in a packing box.
Mission: Repair is also among the sites that offer parts and instructions for repairing your own electronics. The dedicated do-it-yourself site iFixit is another source for parts, tools and instructions you can use to repair phones, computers and other broken gadgets.
Is there any point to having a Microsoft account to log into a Windows 8 PC other than to potentially buy stuff from Microsoft?
Like Google and Apple with their systems and online stores, Microsoft has integrated its own Microsoft accounts for buying and downloading software from its online store. You can also use the same account credentials with other Microsoft products, like the OneDrive cloud service and Microsoft Office.
Additionally, using the same Microsoft account with several Windows 8-based computers or devices allows you to synch your personal settings over the Internet among all those machines. This means your Start screen layout, chosen colors, themes, browser bookmarks and other system preferences are the same no matter which computer you happen to be logged into at the time.
If you had a Hotmail, Xbox Live or other account for a Microsoft service before moving to Windows 8, you have a Microsoft account already. You don't need to create a new one unless you want to.