Absolutely, I will try to give you any idea or advice take it as you need it, use what you need and recycle the rest.
Get a yelp, a website, make as many free memberships with four square, dexter, yellow pages, Angie’s list free version, etc etc, get your name out there.
Use a wix.com website (or Wordpress) but I personally found wix to be much more user friendly interface, but I’ve heard Wordpress you can do more? (You can always transfer in the future when your much better off)
Get your SEO (search engine optimization) going, get known every where, print website on business cards, print common info on the front, use back for a quick estimate section.
Don’t go overboard on the fancy on yard signs or vehicle decals… get cheap basic vinyl decals that say window cleaning and phone number on your car… like $40 total…
Get a brand, a image of your company (metaphors) for me it turned out to be my kids with Squeak N Squeegee. That inspired my drawing I use as my avatar and business logo.