Small differences are big differences.
Are you impressing your clients as much as you should be? What would it take to do so? You may be be missing some huge opportunities to make your services remarkable. Just do what nobody else is doing. Do you hand out the same "thank you" presents as every other realtor or do you give your clients something unexpected? When a house is on the market, are you doing inovative things to make the house look attractive (professionally designed flyers, professional photography, house staging), or are you doing what everyone else does?
Today, commit yourself to adding one remarkable service to your catalog.