Perhaps I’ll regret making this post, but oh well.
I’m a fan of Metamucil, and I also live out of a carry-on. Oddly those two things don’t seem to go together very well. The only “supplements” I take with any regularity are Metamucil, Emergen-C, and echinacea. Emergen-C comes in tiny “pouches,” while echinacea comes in pill form.
Meanwhile Metamucil typically comes in an industrial sized cylinder, given that it’s fairly heavy duty stuff. If you take it with any regularity (no pun intended), you’re basically a human chalkboard.
Anyway, TSA Pre-Check is awesome, and in a way has revolutionized the domestic travel experience. It’s so great to be able to leave your liquids and laptops in your bag, and to be able to keep on your shoes.