Window washing . You can learn it how to do properly in a day . I used to work with my own car and tools - company gives you %50 to %40 from the jobs . If you do good job you get tips sometimes as large as $25 and you can always get your own clients as the word gets around and sometimes neighbors see you and come up to you for an estimate . I didn't like this job but you can make over $200 depending from jobs and your willing to work hard . The best was gutter cleaning but that for the most part starts in late summer . I could clean gutters in half hour and it costs $50 per lever .