Well, I think I'm ready to glue sets of 3 3.5" boards for my intro project
to make the sides, top, bottom, and shelf. I think I understand the
basics - apply a healthy amount of glue to each adjoining edge (enough glue
to where just a bit squeezes out when clamped), clamp about every foot of
so, and let dry per mfg specs (preferably overnight, if possible).

Any advice of tips on gluing the butt edges (I've decided to follow the
majority of the advice here and pass on the dowels, by the way)?

Thanks