^ i find that having a resume - even if you're not distributing it in the traditional manner - is a worthwhile exercise.
compiling a resume ensures that you have a reference copy of dates, names, etc. of previous positions which you'll invariably need when applying for a job and have to fill out an application. once it's created, keeping a resume up to date is a simple task which will save you time and frustration in the future.
further, it's a worthwhile exercise because it also you to consider what you're good and requires you to communicate that in a succinct manner. it's good for confidence in general and particularly useful if you ever get a chance encounter which could lead to employment. you'll be able to talk with authority about your experience and skills at short notice.
alasdair