You COULD clip the entire garment together first, as far as possible and the seaming still manageable!
Jan is referring to the baby clippies that I use for mattress seaming. (I hope you use mattress seaming! This seaming method is IMHO 'critical' to a successful seamline!)
In the photo above, the clippies are holding the sleeve in perfect alignment!
I'll remove a clippie at a time as I seam my way long!
You can 'clip' your entire dress together and have a TRY-IT-ON! And then IF you can still seam things with all the seams still clipped, do so!
In the photo above, I had clipped the sleeve into place for a
TRY-IT-ON before seaming the sleeve. I wanted to BE SURE
that the sleeve was not too long before seaming it permanently
As a rule of thumb:
shoulders are seamed first. Next, sleeves are seamed into the armholes. Next, the sides of the body are seamed from the hem up to the armpits, then you turn the corner and seam down the sleeve to the cuff.
You could use med-sized clippies too, but the baby clippies are cheaper! You get more for your money! BTW: they do not injure your knitting!