Inspired by designjoy, how about a business model where you let people bid to be your client for the next month?

Instead of multiple clients for $5k a month you could have one that will go for $15-50k a month. That will surely bring more quality and free insane amount of time.

Designjoy is a subscription service for graphic/web design where it costs $5k per months and you do one task at a time. It had an insane success for that solo designer running it.