I use the Spectra S2 with a battery pack to make it portable and I store it in this bag when I'm not using it, whether at home or going out. https://www.amazon.com/gp/aw/d/B07TPBBJM5?psc=1&ref=ppx_pop_mob_b_asin_title

I also bought a wearable pump secondhand for cheap that I use for things like driving and in public.

Also, get an oversized nursing cover.