Below are some tools I use day-to-day, all of which are free, or low cost in their most basic version.
Nozbe: Task Management / To Do List Manager
Dropbox: Online File Organizer
Google Calendar: Calendar, duh.
Trello: Process Manager / List Maker (This is a great tool for home businesses!)
Google Photos: Photo storage & organization.
Excel: Meal Planning & some Financial Planning
For help seeing how these tools can help you, fill out the contact form for a one-on-one, personalized session.