Simple but handy if you want to keep your source tree in a tidy structure.
Before:
user@host:~/ $ git clone https://scm.com/repo.git
Cloning into 'repo'...
After:
user@host:~/ $ git dolly https://scm.com/repo.git
Cloning into '/home/user/src/scm.com/repo'...
Disclaimer: no sheep was harmed while making this clone tool.