Ya, know there is a Blues Society type club here, and they have a jam (sorta) and bands on the weekend. Of course just stage mics for vocals and drums mics that are always set up along with the drums, bass guitar amp, guitar amp and lights back to the sound booth (sorta) with the sound guy there on the weekends. If they bring in an amp or drums like last weekend, then the mics are hanging for the drums and still the vocals are all the same. But of course it is not a big place anyway, and running anything else mic-ed would be too much anyway.
Works fine for the jam on Thursdays, because someone may bring in a guitar amp and others may play through the house amp ( Fender Frontman - which is too loud usually because guitar players are too loud) and the drums are used as they are and the bass guitar amp and all of that except for the keyboard guy who brings in his own small Peavey amp and sits on it with his 61 note Roland keyboard synth.
Well, long story short, just use the equipment the way that it is.
(The sound guy on the weekends for the bands just turns on the equipment and adjust it since it is already marked as to what is what up there (and that is not all that much but still it works)).
(Well, not all the drums mics are hanging but the set is there, bring your own bass drum pedal perhaps and the rest is only what it is going to be then for the house drums - cymbals bring if a lot of energy whatever - snaredrum but it becomes simple to just come in with drums sticks and play).