1: Smart sign written van.
2: Do a good job and mention to the customers you talk to that you're looking to expand.
3: Buy some work off someone in your area with pockets to sell, do this by mentioning to the other local windies you are looking to buy, you will be surprised how many will have 5, 10 or 20 who don't quite fit in their schedule well, often they don't cost the earth.
4: Upselling to existing customers gets you over the in the short term while building up numbers
5: Leaflet drops and canvass afterwards but try to do this on estates where there is a chance you can get a few together,
I know Stoots loves his social media but in my view a Facebook customer has a 70% probability of being a time waster, short term gain for long term pain.
Hard work, dedication and commitment are the secrets of nearly all success.
Oh and the best tip, AVOID NEGATIVE PEOPLE, they will suck the life and joy out of all that you need to succeed in.