new to flatbed, what am i missing?

I'd have at least two pairs of summer work gloves like others have said and if you're going to come up to the great white north, have two-three pairs of winter work gloves. Playing in snow/wet snow is not fun for gloves. I always kept a pair on the pass side floor to dry up while I was using the other pair. Of course always kept a third pair as a spare!

Even keeping a pair of socks as spares are handy.

Depends on where you'll be running. I'm used to the northern canadian winter weather so I expect the worst.