Yeah most of that stuff is pretty common unfortunately. I can't tell what the milk says but from my experience those shoulder-embossed milk bottles are usually not the rare ones.
if you find anything more interesting in the mix , I'd try cleaning it off a bit so its not so dusty and dirty
also if you try and sell any of the extra's or stuff you don't want to antiques stores or such , they won't want to buy it if there going to have to spend hours cleaning it so its nice enough to put on display , they like stuff that's ready for sale and needs little work