Trusts will NOT save on taxes. That is not the purpose of a trust. Discuss estate taxes with your tax adviser, or find one through your state's bar association.
A lawyer can set up a Revocable Living Trust for you, but it will be your responsibility to actually move those assets into the trust. Payable on Death accounts - checking/savings; IRAs/401k's - do not necessarily have to be in the trust; discuss the pros and cons with your lawyer.
Be aware that even with a trust, most banks will want you to fill out THEIR legal form.
If you have a simple estate, a will is perfectly fine. Check your state's laws; in a number of them probate is quite simple and relatively quick.
We live in CA, a state which has more lawyers than the entire nation of Japan, and therefore have a trust, LOL.
The estate attorney - you want someone who specializes in wills & trusts - will also prepare a Financial power of attorney and a Healthcare power of attorney. In the case of a trust creation, a "pour-over will" is standard procedure as it covers assets you may have neglected to add to your trust, or acquired subsequent to execution of your trust. But as noted above, substantial assets, such as homes or financial portfolios, need to be legally titled to be in your trust.
If you fail to retitle and move assets into your trust, then the pour-over will is the legal back-up to distribute your estate to your chosen beneficiaries - BUT as a will it is then subject to probate, which means you wasted your money setting up a trust to begin with.
HTH clear things up a little! It can be a pretty confusing subject, I know

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