Newbie with 2015 Two wants info on cool mods , camping etc

Hi Gang! Prius Lover, second one...wanna maximize its usage. 2015 Two. Love to know of any and all cool mods, accessories and possible camping goodies. I have added storage with a cup/phone holder in between the console and passenger seat, and a padded quilt (beveled on one end) that drapes over the folded-down rear seats (headrests removed) for a smooth load-in for musical gear. Not looking to carve out a moonroof or anything extensive. But all else is considered!