If you live in Scotland and your husband has children from a previous relationship, be careful. Under Scots law, children are entitled to a third of your moveable estate, no matter what's in the will.
I was alerted to this by the female bank manager at my branch when I went in to change my details to my married name. My husband (genuinely not knowing about the inheritance laws here) had suggested that we open a joint account.
I was a good bit younger than my husband and became the breadwinner. I had moved some of my savings into an ISA in my husband's name. Had we not been alerted to the problem, I would have lost a chunk of my life's savings when my husband died. Cars are included as part of the moveable estate and would have to be valued, along with any jewellery etc, so the jewellery that I bought him became part of his moveable estate.
When my husband realised that cars were included, he insisted that the car be put in my name. We were married 27 years and illness meant that I was my husband's carer for half that time.
He had a reasonably good relationship with his children, but there was no help when he became ill. We gave them financial help (as did their mother) in spite of the fact that they earned more than us. My husband's income consisted of his state pension, a small works pension and his Attendance Allowance. At the point when I retired, my wage was 40k a year.
My house was only in my name - I bought it before we married and I paid off the mortgage myself.
His children got a bit more than one third of his moveable estate in the end and I gave his grandchild the money that I was asked to pass on (plus a bit extra). I also gave them a couple of money gifts in my husband's name.
Had we not been aware of the situation, I would have been left in dire financial straits when my husband died - I could not have afforded to lose my savings.