$ pwd
/some/long/compli/cated/v1.0.7/path/to/_stuff
$ cd /simple/
$ do -stuff
$ cd ./foo
$ rem now let's get back to that complicated directory again
$ cd -
oh, wait, I cd'ed twice, shit
$ pwd
/some/long/compli/cated/v1.0.7/path/to/_stuff
$ cd /simple/
$ do -stuff
$ cd ./foo
$ do -stuff
$ rem now let's get back to that complicated directory again
$ cd -
oh, wait, I cd'ed twice, shit