I was wondering if anyone leaves a glass hydrometer in their carboy during primary fermentation so that you don't have to take samples. I figured it would be an easy way to tell that the SG has leveled off.
Update: I tried adding the hydrometer to the carboy and it worked out well. I used my phone to zoom in on the reading. I used a hose with a stainless steal rod inside to get the hydrometer in without dropping it. It was easy to get out. I left it in while transferring the beer to a secondary fermentor. When I went to clean it out I filled the carboy with water and it floated up to where I could grab it.