Read original post at Mark Monster's Blog
A lot of people are used to write some data to the Isolated Storage to use it as a Cache. I’m doing that as well, it’s easy to write and read to the Isolated Storage. Some people just write text/xml data and want to put the content in a string. I have however a lot of situations where caching of images is important, so my approach doesn’t make use of a string but a MemoryStream instead.