I do not use a checklist. My gig setup is simple - 2 basses (each in a gig bag), amp head (in a gig bag), cabinet (with full cover), pedal board (in a gig bag), gear bag, mic stand. I bring a folding hand truck just in case I get a crappy parking spot and need to roll things in.
The gear bag has all my cables, mic, power strip, IEMs, extra batteries, tools, and folding bass stand. Straps are in each bass' gig bag. I can be set up or town down in 10 minutes if needed. I will occasionally pull everything out of the gear bag and clean/check stuff, but for the most part everything stays in that bag so I won't forget anything. All I have to remember to do before a gig is (a) charge my IEMs, and (b) adjust my baseline amp settings for whatever bass I'm gonna use that gig. I understand the rigor of the checklist, especially for more complicated setups, but I like Simple.
The gear bag has all my cables, mic, power strip, IEMs, extra batteries, tools, and folding bass stand. Straps are in each bass' gig bag. I can be set up or town down in 10 minutes if needed. I will occasionally pull everything out of the gear bag and clean/check stuff, but for the most part everything stays in that bag so I won't forget anything. All I have to remember to do before a gig is (a) charge my IEMs, and (b) adjust my baseline amp settings for whatever bass I'm gonna use that gig. I understand the rigor of the checklist, especially for more complicated setups, but I like Simple.