Any effective fundraising effort begins with a concise, coherent and compelling case for support: https://purposefulfundraising.com/developing-impactful-content-for-your-case-for-support/

Call just one donor a day, using a tickle file; think of it like brushing your teeth—a quick task that will yield great benefits in the long run (a three minute thank you call can reduce donor attrition by a third):  http://www.pamelagrow.com/4536/reduce-donor-attrition-by-a-third-with-one-simple-habit-easy/