I mention it once. Maybe more sometimes, but over a period of time. More than that and it sounds start to sound a bit desperate. Especially if in a short period of time. Not saying youre right or wrong Hasb, but be careful about sound like "if you dont help my business I will go out of biz coz I cant find work on my own".

I express the work that was done. Encourage them when they show off their rack to show off the BACK of the rack. Customer are proud when YOU are proud and it shows. For me, that works better than begging.