Hey, Just picked up an Orange Rocker 15 and love it so far, but its missing a little reverb. What pedals do you guys recommend? I wouldn't use it for anything special just always on for a little shimmer. nothing complicated needed, just one knob. Ive had a holy grail in the past that seemed to work but didn't like the need for it to be plugged into the wall. any ideas? bonus question, whats a good cheap compressor pedal on the market these days?