If you can afford to do so, it is cheaper to pay your insurance premiums all at once rather than by making monthly payments. Most insurance companies will charge interest and other fees on top of your monthly payments or may offer a discount for paying in a single lump sum.
Seek out an insurance company that can take care of everything you need. You can often get a discount when bundling multiple varieties of insurance with a single company. If you decide to switch your car insurance to a different company rather than the one that takes care of your home insurance, your home insurance rate could increase.
To save money on insurance, you should shop around and find out how different companies will discount for multiple policies for the same household. Most companies offer a standard 10% discount for placing all of your business with them but some firms will be able to make larger concessions.
Source : Guaranty RV Super Centers
