The simplest trick I could give you to do to make your gig day easier:
Grab a screenshot or a photo of the setlist and set it as your phone’s lock screen image.
(I also do this with schedules or overview rundowns for corporate/tv gigs)
Its so simple, and every time someone new sees my phone on show day, the response is always the same: “Why didn’t I think of that?” Handy information accessible with just one button press? Yes, please.
For me it started on tour when I was tired of fumbling with paper, so I’d take a phone pic instead. The second, immediate, bonus for me was that when the punters in the audience asked me for a copy of the setlist, I could honestly tell them I didn’t have one. If you’re the type to handwrite notes for yourself on the setlist- you can still do that. Just take the pic of your annotated work.