As a copywriter there is nothing worse than having a paid assignment with tight deadline and sitting down to write and finding your mind a blank slate! Anyone that does any copywriting for a living can sympathize with this. Fortunately, removing writer's block doesn't have to involve going to a voodoo priest or praying to the writing gods. It can be broken with a systematic approach.
Pat Friesen, wrote an article for Inside Direct Mail that I found had several helpful tips. Check out her article here. The next time you run into writer's block simply break down the steps and follow them. I believe you will find in short order that you will have plenty of ideas.