I've used one VM for deploying my several small projects in the past. I'm definitely curious about separate sandboxes for them when developing locally - one chef-solo and vagrant instance for each - but it seems like it would be a lot more expensive to deploy them to separate boxes afterward. Is there an easy way to "merge" them back into one box when deploying?

... I guess that doesn't make sense. I should have the local vagrant/chef-solo mirror how I have my production server; all projects combined. But at least the chef recipes will make it easier to split things apart once I want to separate projects to different servers for traffic reasons.