Don't drop the ball. You can incorporate drop sets in a weight training routine sometimes for variety, but don't make them the mainstay of your strength training workout. They are best done on selectorized machines, but you can also go down the rack of dumbbells.
Start your strength training exercise with a weight you can lift 8-10 times. Do a set to fatigue, immediately put the pin in the next lighter weight and do another set to fatigue, then do the same thing one more time. If you can do more than 10 reps on any of them, start with a heavier weight next time.