Failing to get some level of commitment from a buyer before providing a proposal is one of the biggest mistakes professional salespeople make. Many salespeople will ask a buyer, “Would you like me to put a proposal together for you?” Think about it, what buyer would respond “no” to that question. After all, the salesperson ends up doing all the work and providing free consulting to the buyer. Buyers expect and to some degree deserve free consulting, but the imbalance of time in this scenario is inappropriate.