I would recommend a multi-effects box that allows you to turn off some effects on the fly. The Zoom G2.1u (which I have) is only bank up or down, meaning you have to click up or down to your patches.
I also have this.... Digitech RP3
an old one but quite reliable and allows me to turn on/off the distortion, mod/pitch and delay individually. What does this mean? It means I make a patch with the three effects and turn it on/off without going up and down on the patches.
Example: I can make a patch with distortion, phaser and delay for a song. Play the intro with the phaser, distortion alone on the verses and kick in the delay during the solo.
A model like this will probably cost a little more but it will make patch switching less of a hassle.
Note: The wah on this sucks!