Auto insurance is obviously different depending on the type of coverage you buy, but since the national average expenditure for car insurance is $795 a year and PA's average is $820, it can easily be inferred that Pennsylvanians are likely to pay a bit more on average for just about any type of coverage.
To answer that question, airfare shopping engine CheapAir.com monitored fares for more than 4 million flights in 2013 over a booking period ranging from 320 days in advance to one day in advance. Its researchers found that fares for domestic flights were lowest 54 days in advance.
According to new research by CheapAir.com based on the travel site's review of 560 million airfares, the optimal time to book a domestic flight is 49 days in advance. If you're flying overseas, you should book almost three months -- 81 days, to be precise -- before you travel. Too much planning for you? Don't worry.