Take the time you need

This is so important and it can’t be mentioned enough. Same as with the tip about learning to say no. Once you have said yes to a project, make sure you take the time needed to do the best work. Handing over a project that is not up to your client’s expectations will leave you with a client who won’t be back AND a negative reputation. Your clients are your best references and no one wants a partner who overpromises and under delivers.