Combining tinctures

Is there any reason NOT to combine tinctures into one mega beverage? Say, adding all my drops into one glass of water? I take about 7 different tinctures twice daily. I've been doing them one at a time.

Aside from how bad it would taste, is there any reason not to? For example, I'm out all day seeing my doctor and on days like today, I usually miss my tinctures in the morning because I can't travel with them. Unless I get a small cooler. That's an idea too. I kinda thought I'd dose the drops into a mason jar, fill with water, and go.

The only one that you should not combine are Cowden's Samento and Banderal that they recommend be taken separately by at least 15 minutes.

I always put my Buhner tinctures in one (1/4 cup) glass of water and down the hatch together...then eat my meal.