I have the problem that each time that I want to start a new project I have to start from zero. Creating a cross-browser and responsive application takes time and a lot of effort. Also, my design skills are not that great.
ThemeForest and TemplateMonster do help a lot, but it takes a while to fit them within a .NET project. If you are a .NET developer and need to speed up your development, check out wiwet. It is a new community for graphic/web designers and .NET developers.
http://www.wiwet.com
