a handset is one thing; charging it is quite another.  1.3 billion people, don't have access to mainline electricity.  Tough Stuff has not only introduced a solar panel the size of a paperback that can charge a phone, and that can pay for itself within a couple of months (replacing costly kerosene, batteries or paying someone else to charge your phone).  But also partnering with NGOs -- and their local partners -- ToughStuff is creating a network of salespeople who can make an income as solar entrepreneurs -- helping get the products the last mile, and helping generate incomes for the entrepreneurs. This story was set out in a blog by Susie Braun, On Purpose Associate, which you can read here . The Gatsby Charitable Trust , which this week posted a job ad , is working with local institutions to transform Tanzania's cotton and textiles sector by raising the yields of more than 400,000 smallholders and catalysing downstream industries.   How? By introducing new contract farming arrangements, driving research into new seed varieties, and promoting improved farming practices and downstream skills. Read the job ad here . The Chief Exec of NGO iDE UK , Lewis Temple, this week posted a story about how they are working to creating self-supporting female entrepreneurs in Africa and Asia by helping them access the right technologies and services that will in turn enable them to run businesses in farming. Read the blog here . And finally, each week we highlight one Business Fights