I've been using GTD with great luck. The short version is:
- everything that you have/want/need to do goes into the inbox.
- inbox gets periodically reviewed. At this point you must ask yourself "do I need to do this". I made the mistake of dropping YouTube links and various other links into my inbox. Don't do this as it increases the cognitive load of processing your inbox. Be honest with yourself if this is something you wish to do or need to do. if it's only a wish that you'll never act upon delete it. If you can't delete it, stick it into a "later" file. If this is a must do, stick it into an appropriate category ("House tasks", "Project work" etc).
- periodically review all your projects. Be honest with yourself here as well. Are you going to do this or did it slip past your "Do I need to do this?" filter.
The inbox gets rid of anxiety, trying to remember everything. I can't stress enough about reviewing your task list and throwing out things you're not likely to do.
Some suggestions
Review your list and remove the fluff.
Keep your list short if possible. Focus on 2 to 5 things you won't to accomplish each. If that isn't possible you can prioritize using eisenhower matrix.
Time box the items in your list
After all that time I reached the conclusion that a simple text file is the best solution. I have it sync to dropbox and use it every day.
Would you mind clarifying this?
I use todoist with my inbox as the sole list, and I don't utilize 90% of the features. The biggest thing is to just get in the habit of grooming it regularly.
At work I pretty much follow GTD but use 3 text files. One is my Todo/inbox where I write everything down I need to do. I have a schedule file where I schedule things under dates from the Todo/inbox list, I check this everyday. I then have a done list which lists everything under dates they were done.
I have a someday maybe list too but don't use it daily.