Put a pedal (or several) in a separate loop, to turn them all on/off all at once. Or keep noisy or tone-sucking pedals out of your signal chain, until they are needed.
My experience with the Feedback option is that it's either too much, or not enough. It's either not loud enough, or takes over everything. YMMV. 50 dollars
includes shipping/tracking # (in continental US)
Behringer Chorus Space-C (allegedly a clone of the rare Boss Dimension C chorus). No knobs, just push buttons (you can combine settings, too). Neat pedal, I just don't like chorus. Ignore other pedals, only the Behringer is for sale. 26 dollars
includes shipping and tracking # (in continental US)