I just use a glass pipe. It's your typical 4" long glass pipe with a bowl and a carb hole on the left side. Holds about 4 hits worth of weed............. which is about 2 hits too many for me most of the time.

Don't see the fun in using bongs or complicated bottle thingys. Been down that road when I was in my 20's. Too complicated. Too much trouble. Glass pipe costs $15, fits in your pocket and disappears in a hurry if you need to get rid of it.