One thing that you should do would be to evaluate your own risk. You should work out exactly where your risk might be and this will allow you to take steps to reduce your risk as it is perceived by any insurance provider. To this end, you may want to swap your vehicle for a different one in order to reduce your risk and therefore get cheaper insurance.
Of course, a lot of things may well be set in motion already when you go out to get insurance, and as such you might only be able to take a number of generic steps in order to reduce the price that you pay. One thing would be to make sure you do an auto insurance comparison and that you gather multiple quotes that you can compare and contrast.
You could also consider the coverage that you get. The coverage you get will make a huge difference to the price, and if you simply cannot afford more expensive insurance, then you are going to have to sacrifice some coverage in order to reduce the price.
In addition to this, when you're looking at any policy you should always focus on the deductible amount. If you really want to save some money then choose a deductible that is a little bit higher as this will cause your overall insurance premiums to go down. However, it is important that you make sure the deductible you set is at a level that you are able to financially meet should you have to file a claim.