I'm usually pretty accurate estimating the time it takes me to design a website. The trouble I'm having is consistantly getting my estimates correct for logo designs that I'm doing. Since going freelance I've had logo projects where I've nailed the concept after the first few ideas have been shown, and I've had others (like one I'm currently working on) that has run 2 days over my estimated time. I guess sometimes it just takes longer to reach an idea/concept that the client likes. How do you guys price logo design projects so as to avoid this? Also going back to the example of the logo I'm currently working on that's over run by a massive 2 days - I know I need to get more money for this, but am a little reluctant in case it jeopardizes my relationship with the client. I also had a bad experience in a similar situation a few months back....any advice?