1) A customer should not at make an assumption that all the insurance companies are same. It is seen that different insurance companies offer different premiums and options. If a person is looking for quotes on his own, then he should make sure that he gets all the information required to get him an insurance quote suiting to his needs.

2) A customer should not buy any insurance feature which is redundant. Redundant means features that he may already be having through other establishments and services. Following are the areas of redundancy:
If a person is paying for towing services somewhere else then he is not needed to pay for any special coverage for any Roadside Assistance as a term of his policy.
Personal Injury: all the health insurance firms provide coverage for an injury state so this is a major redundancy feature that is included in insurance quotes so people should avoid it.
3) A customer should not always go for the cheapest of all quotes. The logic behind this is that the cheapest quote might not have the best insurance policy that fits your need in the best possible way. Therefore it is contemporary to compare amongst multiple auto insurance quotes at on time in terms of features provided and the coverage provided.