YSK paying for all of an insurance policy's premiums upfront can make it around $5-10 cheaper per month
Why YSK: Not life-changing but it can save you a little bit of money.
Insurance companies charge more if they bill you monthly compared to if you pay for the entire duration of the policy upfront in one go. Sometimes, the difference is nominal or nothing, but other times, it's actually significant. So if this is something you can afford to do, you should check if a discount is offered, and if it is, take it.
This doesn't affect your cancellation rights. If you cancel an insurance policy despite having paid for it in full, the insurer will mail you a prorated refund.
This tip works in the US with several major insurers.