What are "Multi-Policy Discounts"?

The more policies you have with the same insurance carrier, the more discounts you may qualify. Typically having an auto/homeowners policy all with the same insurer can save you between 10-20% on your rates.

Any other discounts commonly available?

Other auto discounts, which can vary by state and by insurance company, such as defensive driving, good student, low-mileage auto, alcohol awareness training, air bags, antilock brakes, claim-free experience and long-term customer are available.

How high should my liability limits be..?

THE BEST RULE OF THUMB: Keep your limits at least equal to, if not exceeding, your net worth. That way you will know you made the right choice if the unexpected occurs. Should your assets exceed the maximum liability limits available on your policy, consider owning an additional liability "umbrella" policy to make certain your assets are fully protected.