Something that works very nicely. If the branch is always on the shape ticket-description, one can write a git hook so that all commits have the ticket name preppended to the name, like in "[ticket] commit text", very useful for understanding blames.
Name them something succinct that will be meaningful coming after "Merge branch". Junio Hamano (a good person to crib from when it comes to Git) puts contributors' initials in the branch names as well.