If ever sued how to protect life savings

Number 1: adequate insurance. Not only should you have adequate insurance for all the typical areas of life (car, homeowners, etc.), but you should maintain an umbrella policy (covers everything, basically) as well.

Related to the above, if you engage in any activities that potentially generate liability, such as blogging extensively (there could be a defamation suit), then get insurance specific to it (e.g. media insurnace).

Number 2, segregate economic activities from your personal assets. If you engage in any money-making business--freelance writing or graphic arts, being a handyman on the side or weekends, renting space in or on property you own, etc.--even if it's only a small part of your income, set up a separate LLC or corporation to do it through. That way, if there's any liability through the business activities, it will only touch business assets, not everything else you own.

Number 3: there a number of strategies involving trusts, or certain kinds of accounts (like IRAs or college savings accounts) that will insulate the money or assets in them from many kinds of claims or liability. However, the issues involved in them are complex, and they also have some downsides, such as limiting your control over the assets or your ability to withdraw them at will. If you want to consider these, you will need to consult with a trusts and estates attorney, who can provide guidance detailed to your needs.