Opening a health savings account (HSA) can save you hundreds on your health insurance premium and help pay for out of pocket expenses and deductibles. Anyone younger than age 65 who buys a qualified health insurance policy with a deductible of at least $1,000 for individuals, $2,000 for families, can open an HSA. An HSA lets you set aside pretax money up to the amount of the deductible (with an annual maximum of $2,600 for singles; $5,150 for families). You can use the money tax-free for…