Not having a budget at all
People tend to come up with various excuses for not having a budget — they do not have a steady job, they make too little to live on a budget, and many more. The truth is that there is really no excuse for not having a budget. Irrespective of how much you make and what kind of commitments you have, living on a budget can help you achieve your financial goals faster. At the end of the day, having an imperfect budget is infinitely better than not having one at all.
