Be sure to include a recent newspaper in the view to establish the date. Make a list that includes all items, along with the value of each one.
It's best to create several sets of this data: give one to your attorney, keep one in secure location only you have access to, and consider giving one to a trusted family member or friend for safe keeping. Only share information with your spouse through your attorney. Revealing in advance what you intend to show in court and how is not always to your advantage.
In addition to documenting all marital property, this strategy can help diffuse unreasonable claims. For example, if your spouse claims to need additional money for clothing and you can present a photo of an extensive wardrobe, it's evidence suggesting the request is unwarranted.