Thats how I do it for my website projects. I usually plan the main process (User entry => Checkout) and make sure its working, and leave things like design and

Thats how I do it for my website projects. I usually plan the main process (User entry => Checkout) and make sure its working, and leave things like design and user experience for later. I always add live chat support on my projects so users and prospect-buyers can complaint anytime. Embarrassment + Money makes good source of motivation to make my websites better. Also another good thing about this approach is you never waste time on bad ideas.