What do you use your hydrometer in?

[mychalg9]

If you use the plastic "sleeve" that your hydrometer came in, make sure you hold the bottom plug in place when you pour the wort into it. I was taking a reading once and the bottom fell out from the weight and nearly broke the hydrometer.

 

[masonsjax]

Just before using it, I put one end into some starsan, and suck solution up to the top, then flip it over and swish the dirty end.

 

[Boerderij_Kabouter]

The plastic tube it came in. I wish they would make actual hydrometer smaller so it takes less beer to measure.

http://www.bittercreekhomebrew.com/6-Beer-Hydrometer-pr-866.html

eye dropper into a refractometer

This is what I do.

I also have a glass hydro jar I use for measuring terminal gravity.