To do list and pomodore technique

Since the first project I was involved in, I always knew that I have to have a to-do list for everything. If it was for school or for a company project, there’s definitely always a list of action items that needs to be accomplished in order to call it finished. I used have one piece of paper and keep it in pocket to mark, add, edit, or remove items from that and other list I had with me in those times. It worked for me in many ways, to organize things, to delegate stuff, to solve it in different way, to determine whether it was worth it or not. Now I use evernote, then things and finally I used the so called pomodoro technique. I started the clock and work as hard and as focus as possible until something else appears and I have to jump to another thing, or attend a call or the waterman outside of our house. This works for me, even though sometimes I feel I have to jump from one tool to another and see what is missing. How do you guys accomplish your action items, tasks or anything? Please share with me