Re: 7 mo old, only will go on the changing table
What about bringing the potty to the changing table or letting him pee into a plastic bottle while still on the changing table? My co-mentor for our diaperfreebaby group loves using Dixie cups to get her son to pee. They work so well for them.
I know some parents who change their babies in the bathroom so they don't have to travel a few feet w/ the bare bummed babe. : )