Good one. Also, what you can use is xip.io for wildcard domain to address forwarding so you wont have to add A records. All *.xip.io addresses point to the IP defined as subdomain, so 192.168.10.10.xip.io points to 192.168.10.10 etc.. dynamically.

A good hosts file editor for Mac is https://github.com/2ndalpha/gasmask