The issue is more a question of what you are comfortable with and what problems you hope to solve. Most methodologies are used by a solo developer at some point (pair programming is a notable exception). The issue is are you actually alone, or just working by yourself? I have found that it is invaluable to have people I can bounce ideas off of. Furthermore having someone else to look at you code (peer review) is a great way to find issues that you just cannot "see". So to agree with Aiden Bell "Programming on your oen is uncool."
I would try and connect to a community (like SO) where you can bounce ideas off of others. Then you need to build your methodology in such a way as to allow for interruptions when you send an idea out.
Does that make sense? Why are you programming alone?
Pat O
