I have a Joe meek floor q compression pedal, which is absolutely awesome. I use an mxr envelope pedal - this is cool but needs adjusting for every room, can be irritating! I have a tuner and a bass xciter for Di if needed, but my amp has that anyway, but a good back up if something happened to the amp. I also carry round a small alesis mixer, if i am changing basses and need very different eq's, or a little bit of chorus i may put that in front of the whole chain. It can be like a pre and post eq after the compression pedals and envelope effects! The annoying part is they all run of different power ratings so i cant rely on a floor board power pack.