Just tinkering about the shop, I decided to finish off a little job I should have done last year.
Nothing too strenuous or mind numbing, just a few 8mm holes drilled and tapped in a logical pattern into my faceplate.

By doing this, it allowed me to bolt on my Keats angle plate.
I have mentioned these before, and IMHO they are a lot easier to set up than a four jaw. Maybe not as versatile as a 4 jaw independent with regards to size holding, but if you are making more than one of the same thing, it can save you hours of setting up.
Once you have tapped the plate into it's final resting place for doing the job, and tweaked it up tight onto the faceplate, if you need to do another of the same thing, just slacken the two clamp screws, put in a new piece part, and away you go. With a four jaw, your have to reset the jaws every time you slacken the jaws off.

Holding a bit of square bar.

Then a bit of small round.

My four jaw is massive and too heavy for me to lift safely, and until I get my new donated chuck mounted up, this will do me just fine.
If you can fit one of these onto your faceplate, for the price, it is silly not to have one.
http://www.rdgtools.co.uk/cgi-bin/sh000001.pl?REFPAGE=http%3a%2f%2frdgtools%2eco%2euk%2f&WD=keats&PN=ANGLE_PLATES%2ehtml%23a688#a688Bogs