I'm buying my first pickup (4-door) this week and wondering what I need for the back. I see tonneau covers here seem to be cheap velcro things or very expensive electrical ones. I thought about a 250l box that sits in the bed but then the cover can't be used (according to Lazada sellers). There's nets, bungee chords, s-snap hooks. I'm not really sure where to start. I'd like to pop the shopping in the back, a few 20kg boxes of water, luggage when picking family up from the airport, and sand/soil/gravel when needed. Naturally I'd like things to stay dry, safe and secure. What do you guys use to do all these random jobs? Will I need all of them?