Yep. I did a revokable living trust rather than a straight will. It includes POA for medical and POA for financial. I felt so much better once it was done. Once it was done, I walked around saying "now I can be young again".
Speaking of wills, a few things I have learned:
If you separate, change your will (and beneficiary info on accounts) immediately. You can always change it back if you reconcile. But if you die without changing it, your estranged spouse can get everything.
If you have kids from a prior relationship, make sure you include your intentions for them in your will. Do not depend on your current significant other to follow through with any verbal wishes. It's really easy to say "of course they'll get their share" when you are alive - and it is most always sincere. But when you die, the connection between your kids and the new relationship is gone and it's much harder to give away what is actually in your hands.
Don't make the executor one of the beneficiaries. It's too easy for things to devolve into war. Instead choose someone outside the family with no stake in the outcome.
And if you don't want to leave anything to someone, don't leave them a dollar - that gives them something to fight with. Instead, identify them and state they are to get nothing.