I’d pack several outfits and plan on laundry if that’s an option.
Now that it’s getting close to summer time. Maybe a pair of pants and warmers clothing if going somewhere on the cusp.
Rain gear.
2 pairs of golf shoes.
The harder part is non golf attire.
If a member, range balls must be included.
Ideally, well kept/newer balls.
If not a member, affordable range.
Secondarily, a nice short game area is paramount.