LS-2's are a very quick and cheap solution to the problem, as you can put the effects in one loop, and leave the other loop empty, and then use the level knobs to blend the sound together. Personally I use an Xotic X-Blender, as it has a big blend knob you can turn with your foot (invaluable for me as I have a fuzz in the loop, and sometimes just want a soft fuzz and then a heavy fuzz later in the song, so can change with my foot and either gradually fade the Fuzz in or just turn the knob up while the pedal is off) and it also has volume, bass and treble controls for EQ'ing the blended signal, eg to match your clean sound, or a bit of boost, etc. Then having the footswitch to be able to turn off the blend and go to straight effects is also very useful. Great pedal! The best blender available IMO.