Be prepared for objections
Too many salespeople lose opportunities because they fall at an early hurdle. Often this is because they simply weren't prepared for it.
Source: Sales speaker Daniel Disney
Spend some time writing down as many common objections as possible and prepare notes on the best ways to overcome them. Have them pinned to your wall or on your desk -- basically, somewhere that they are easily accessible.
Just by overcoming 1-2 more objections could win you significantly more sales!