Ok, firstly, I've read the FAQ on familiars and items. Barding slot and neck slot only, unless I take the extra item slot feat. This is a PFS campaign-specific rule that varies the animal item slots optional rule from animal archive.
Does this restriction still apply when I am melded with my familiar through a spell or ability? If I am melded with my familiar would I be able to put on, say, a tiny ring of protection or wear a tiny helmet of waterbreathing, seeing as it's me - the player character - putting it on rather than the familiar (albeit in a temporarily borrowed body)? Do I keep my item slots when melded with my familiar, assuming my new body has the anatomy for it?
And whilst I'm at it, am I free to use use-activated items such as a hand of glory?