Tears of the Kingdom tips for surviving the new economy and whatnot, under the cut (in case of spoilers)
Adventuring Tip: STEALTH IS YOUR FRIEND
Once you get to Kakariko Village you can buy the Stealth Suit (Highly recommend doing the connected sidequest to bring the cost of the shop down). This makes it so you can walk up to fish, bugs, and creatures without them running away (if you sprint they'll still run) this is AMAZING for collecting these things as everything seems way more sparse in totk. No more chasing frogs for you my friend.
Cooking between 11:30pm-12:00pm on the night of a blood moon gives you:
+3 hearts recovered to your dish
+1 level to whatever effect is present in your dish
+5:00 duration to the effect
Rupee Tip: Go Spelunking!
One of the biggest features in totk are the new caves systems that are literally everywhere. Oftentimes you'll find ore deposits and rare ore deposits and find Amber, Opal, Rubies, Sapphires and Topazes. Sell them for cash (I recommend saving sapphires, see below). If you see a wall of breakable rocks, usually it will drop rusty claymores and rocks for you to make more crude hammers. But a bomb flower or zonai time bomb work too (DON'T BLOW YOURSELF UP). Additionally, a cave will be marked with a ✔️ once you kill the bubblfrog inside.
Frozen enemies take double damage from your next hit, so try to always have a Magic Rod/Scepter with a sapphire fused to it, fusing a sapphire to a regular weapon works as well, but you're not aiming to hit the enemy with the source of the ice. Freeze > pause and switch to your strongest weapon> hit the enemy > switch back to your ice weapon > repeat to stunlock the enemy, works on everything that isn't a Lynel or Boss. Using Ice Fruit or Blue Chuchu jelly works too, but stuff is more rare in this game.
-Bow & arrows (the stronger the bow the better)
-Sheild (for sheild surfing)
-Cold Resistance Armor (to survive)
-Speedy Elixir (optional, but it'll REALLY help)
-Access to Snowfield Stable (Hebra Region)
What you're gonna be doing is big game hunting in the snowy field north of the stable. All winter animals are capable of dropping Raw Gourmet Meat which is the best quality, including moose, the bears and the wolves. Sheild surf to get around quicker and then go for headshots with a bow and just hunt the animals for their meat. You'll want the speedy Elixir because you have to be pretty quick between the meat dropping and freezing. Once it's frozen it counts as a meal, but you literally get hundreds of rupees by selling 5 Raw Gourmet Meats cooked together.
Item Management: Brightbloom Mushrooms are the new Apples:
Going off of the previous tip of exploring the cave systems, you'll find Brightbloom Mushrooms almost more than anything else. Eventually you'll want to stop collecting them, but they're the perfect source of quick food fodder. Just cook a bunch together for quick hearts (and the glow effect which is nice in caves).
Advanced Combat Tip: Muddlebuds
If you've been to The Depths, one of the native plants are the Muddlebuds. These make it so enemies will attack each other when thrown (or attached to an arrow). I recommend wearing the stealth gear, sneaking up to a pack or finding a vantage point, and hitting the strongest enemy in the group with a muddlebud arrow. It'll start to attack it's allies, allowing you to sit back and enjoy the show. Note: enemies will still target you if they see you (hence the stealth/vantage point)
These are just a few tips, feel free to add more, and try not to be too spoilery for people who haven't played or haven't gotten far yet!