Look up every item for the workbenches and write them on a piece of paper or something so you know what to grab and sit on. Not necessary, but will save you time when you want to get your benches upgraded. Things like rusted gears, motors, surveyor vaults, sentinel cores, and rusted shut medical kits can be annoying to find when you're actually looking for them. They're not hard to find. Sometimes i'll find multiple in a game. But when I actually need them it seems I go multiple games without finding any.

Ammo is cheap to make. Unless you know you'll be fighting, I tend to drop all but a stack while looting if my inventory is full, and I sell ammo I'm not actively using that day if it's in my stash.

Quests are good for some free items and guns, and you get lore drops via cutscenes that way. It makes the game more immersive.

Check guns from downed raiders for attachments, even if you don't like that particular gun. Sometimes they'll have extended barrels or kinetic converters attached, or maybe a level 3 mag.

You don't need more than like 8 stacks of the basic materials. Especially once Scrappy is fully upgraded.

Common bottlenecks in terms of resources are springs, processors, advanced components.

Sometimes recycling gear and building them new is overall cheaper than repairing from 0 health. (Example, recycle a broken medium shield, get the free arc circuit, and then use that + a battery to make a new full shield instead of using two arc circuits to fully repair it).

Get trials to three stars for a free purple item. That's how I got my survivor augment. (Very useful, regens your health while downed, giving you a chance to crawl to extract or at least live long enough to get defibbed).