Haven't seen this one mentioned but I use Wet Platinum which is silicone based, tried the regular which is water-based, too sticky right away. Just a few drops of the Platinum works good.
I don't usually either. If I need something a bit of spit does the trick. For a really long session (which is rare these days), Gun Oil is good when I do use a lube.
I always use lube, because my skin becomes really tight when I am hard. My favorite lube is Vaseline Total Moisture and Conditioning lotion; once I even tried Icy Hot OMG that was interesting went soft almost immediately, so I don't use that anymore.
I use a lube called (gun oil) it is a silicone lubricant it is the best ever! You can get it on line. What also works is crisco yup the baking stuff! It's great. Enjoy.