The summertime flavor of fresh tomatoes is fleeting. Unless, of course, you preserve your haul.If you're looking to enjoy that flavor in December, your best bets are canning and freezing. .Here are some simple how-to's and ideas for making your tomatoes last.Briefly boil them until their skins split; then shock the tomatoes in cold water.Remove the skins and cores before jarring them, and add lemon juice to prevent spoilage.To freeze raw tomatoes, start by washing the tomatoes and trimming their stems.Next place the tomatoes on a baking sheet and freeze. That's it. No blanching required.Once the tomatoes are frozen, transfer them to freezer bags