There is a great Coworking place next to Arganil market at the Centro Empresarial e Tecnológico de Arganil (CETA). You can hire a desk/office shared space. The basic cost gets you a shared office space desk with access to the internet. You pay extra for phone calls, printing and photocopying. You can hire the space daily for 2 euros, weekly 10 euros, monthly 30 euros or yearly 300 euros.  If you visit them they will kindly show you the space and give you a blank contract with terms and conditions. If you want to do this you need to complete paperwork at the Arganil Câmara. They check with the finance office that you don’t have any outstanding debts.