Alrighty, posting August and September together. The contrast should be fairly illustrative of the fluctuations in income for a waitress/whatever I find in 'craigslist gigs' worker.
Income - 786
Expenses - 583
Savings - 25%
Income - 3045
Expenses - 894
Savings - 70%
Savings Rate - not really a helpful metric for me, since it's a % of such a widely varying number. A better metric might be comparing dollar amounts of "trouble" categories month-to-month, or a simple monthly budget goal.
While there's still work to be done in reducing spending, I feel that I have the basics covered - cheap rent, happy without a car, already "invested" in high-quality bike, tools, shoes, hobby supplies when my income was higher.
Therefore, my focus going forward needs to be on increasing income, by changing or adding jobs, and by educating myself to the point that I can put money into higher risk/higher return investments with some kind of confidence.