One of the best tools I have for my own home based business and for my job is my laptop. I take it with me everywhere I go. I use it for my regular job, making schedules and creating forms and flyers for work. I also use it to keep track of appointments and to keep track of my money.
I journal with my laptop and write my shopping lists with it. I create documents for presentations at work and I go online to do my online business.
There is no place I go that I don't take my laptop with me. In fact, my bag is getting worn out and I need to get a new one. The laptop bag has all kinds of neat pockets to store pens, pencils, note pads, memory cards, card reader, cords, aircard, and many other things I would now feel lost without.