I just switched from taking a daily packet of vitamins sold under the Nature Made banner (sold at Walgreens) to the Vitamin Shoppe's house-brand Ultimate Male Vitamins.
Two interesting notes:
I actually feel better taking the new vitamins. Not always, but some does I have appreciably more energy and feel better working out.
There are nine(!) pills in each packet. Even if I space them out, I sometimes suffer from some stomach distress after completing the entire packet. The Nature Made packets included just five pills, and I had no problem sucking those back.
Just wondering what everyone else is doing along these lines.