The first day of my vacation, I lined up the pre-primed baseboards outside and took advantage of the sunny day to get them all painted with two coats of white paint. Like my handy bucket and 2×4 support system for painting? Gotta make due with what you have on hand.
We have high ceilings and need to cover the existing baseboards that were flush with the drywall throughout the house so we went with 4 and 1/4 inch baseboards. We shopped around and found the best price at a local lumber yard on pre-primed boards. Such a time saver to not have to prime the boards too.