How About Donating Goods?
As well-intentioned as you may be, it is actually not helpful to donate goods such as used clothing, shoes, water, etc., unless you have contacted the organization to specifically request what is needed and are responding to that specific request. Read CBS News, "When Disaster Relief Brings Anything but Relief." (April 24, 2016). When in doubt, give funds to a trusted organization.
In these immediate days in the aftermath of Harvey, you will hear public please through our news agencies for specific items needed in shelters. Please do respond to those requests. Just don't load your car and waste your gasoline delivering items that aren't needed.
Many roads are impassable and shelters must rely on those who can get to them to bring supplies that are available.