I use git cola for the same. It's a really light weight little tool that's surprisingly feature complete.

I usually make a bunch of changes at once. Following a break I review the changes and break them up into logical commits.

I aim do break up changes so that the commit log can be read like a book and. I can guarantee that not a single commit contains hidden surprises or unrelated changes.

I don't know how most devs get by with just the CLI. A lightweight gui makes commits and reviewing the history tree so much easier.