What are the extra things you do to sell a job that you don't charge for?

I had a client recently share with me that between me and another remodeler, I was the one willing to do the most without asking for anything in return before he booked the job, so that's why he went with me. 

I went and took measurements, got him a rendering of his new kitchen and a layout from the cabinet shop, met with him 2 other times, met them at the cabinet store. Really spent a lot of time developing report before I got the sale. 

I don't know how sustainable that is however my motto is just be as helpful as possible and the rest will come. 

What are the "extra's" you guys do to get that sale or create value with your customers?