You shouldn't lose an arm and a leg in costs doing it, either.
Word processing makes estate planning easy and inexpensive.
A living trust avoids probate. With this trust, you are making a gift to your children or heirs. They will appreciate it at a very difficult time. You are acting responsibly and it won't get finished until you do it. I have written an article about trusts, and to give you guidelines if you and your family need them.