funny story here...
I was in a band that broke up. Afterwards, I did one of the coffeeshows that had been booked solo. The guy who ran the place was really nervous (could I do it? Am I any good solo?) - I pulled it off, but found without anything to sell that sounded like me now, that there wasn't much followup besides a mailing list.
I'd say get something together, if even to give away for a buck or two. Something that'll keep you in people's memory
RB