I will have some food (powerbar, gels) in my jersey pockets, with extra supplies in a bento box on my top tube. Racing cape and/or arm warmers in the jersey pockets too. I keep all my repair stuff (tubes, CO2, tools, etc), phone, first aid, ID, cash, CC, and some spare Nuuns in a wedge saddle bag. Minipump mounted on the downtube. If I take a camera it is either in the bento box (point-and-shoot) or mounted on the bars (GoPro). Spare batteries and memory cards in the bento box too.