I use triple-flange earplugs when practicing by myself and Shure SE215s as in-ears when playing live. I love how the in-ears give me the option to turn down the mix. My ears ring much less after a set than if I were using an open-air monitor. That's worth it.
Same here for me. I really want to upgrade though and get a pair of custom molded in-ears that have limiters built in. Every once in a while, there will be a screw up at the FOH board and it's like getting stabbed with a lawn dart in the ear.