Gotoob Green/Medium

I like this design, but the price is far too high. I wouldn't mind that so much, if it reliably did the job I got it for, which is to hold a 50-50 solution of isopropyl alcohol and vinegar. But I quickly discovered that if I don't screw the cap on REALLY tight, using a firm double grip, it leaks. For my particular purpose (lavaging my ears with a Q-tip after I shower to ward off otherwise inevitable ear infections) I can't use the (otherwise excellently-designed) no-drip flip cap because it squeezes the Q-tip too dry.

Isopropyl/vinegar has a slightly lower viscosity than water, so it's a test of anything's leakproof-ness, but it's a test a bottle this expensive should pass.