Just focus on doing the next action perfectly, which is a lot easier than trying to be perfect about how you approach something bigger. Be as retentive as you want. The only problem is when it stops action. Be a perfectionist about the process, which will require, of course, making decisions on the front end that might not be perfect. Think about what might go wrong if you avoid decisions and action! (If you need a negative motivator.)

Pay attention to your intuition, or just simply: What do you feel like using as a system? We’ve discovered people tend to resist the GTD® implementation process enough as it is, so you need all the help you can get to be motivated to work the system. If you know you’d like to be digital, don’t waste time on a paper system. But if you like the look and touch and feel of a cool notebook, go for it. No system works unless you work it.