1. Not discussing who will pay for health insurance for the children. If both of you have health insurance, you'll need to decide which plan is better for the children's health needs.

2. Getting dropped from your spouse's health insurance plan. If you're insured under a spouse's plan through work, beware that your spouse could drop your health insurance without your knowledge.

3. Not realizing you may be eligible for COBRA. Divorce is a "qualifying event" for COBRA coverage, so if you're dropped from your spouse's group health insurance, you could be eligible to buy that plan yourself for up to 36 months.

4. Not having life insurance for the benefit of children and ex-spouse. If your ex-spouse is still dependent on your income, especially if you have children together, you'll want to have life insurance to provide for them when you're gone.

5. Not updating beneficiaries on life insurance policies. If you have an ex-spouse named as the beneficiary on your life insurance policy, you'll need to update the name (unless that ex-spouse is still dependent on your income for themselves or for children).