I don't charge anyone - that is between you and the company site.
I am very sorry for your loss.
OK, we can not collect two benefit amounts for 1 person. It is 1 benefit per person. However, you CAN choose between yours and a survivor benefit based on your wife's account. SInce hers is larger, you'd likely want to do this. When you go to the SS office on Wednesday, you will want to bring the death certificate as well as your own photo ID, your own Birth Certificate and your Marriage License. In addition to switching to survivor benefit, you can also file for the "death benefit" of $255, while at the SS office. It is a one time payment, so not very exciting, but every bit, right?
If you recall any life insurance policies that may have been in your wife's name, do some digging. Sometimes they can be part of a membership (like a club), some stem from having a credit card, and come automatically as a benefit, but you need to know so you can make a claim if you are beneficiary. Some are attached to OLD employment. For the next several months or up to a year, I'd scour the incoming mail for credit card statements and /or renewal notices, for evidence of any such benefit. And of course, as you are now, I'd carefully go through all the paperwork in the house. If she didn't have a will, which is not unusual, as her spouse, it is likely that all will come to you legally anyway, if there is anything to probate.