So I visited the Genius Bar and got my iPhone 5 replaced due to a bad home button. The technician did tell me however after diagnostic testing my battery was worn out and that I had lots of crashing apps to deal with after my iCloud restore. First question is what are some good tips to keep the batter lasting a long time. Secondly he said my apps had lots of crashing issues and that after I restore I should reinstall them. What would he have meant by this? Should I go through and delete and reinstall apps one by one? Thanks in advance.