I almost never do a protein rest. Most of the beers I make are single infusion, and that works for about 95% of the beers I make.
Even wheat beers don't usually require a protein rest. Also, a protein rest is not only unnecessary with well-modified malts, they can also be ill-advised. A protein rest can wreck havoc on head retention!
Broken Leg Brewery
Giving beer a leg to stand on since 2006