My Norwegian Gramma was head pastry chef for 25 years
don't overwork your dough.
use almost freezing butter.
try not to use your hands too much when kneading, it warms the butter too fast.
result, flakey/crusty/light pie crust
if you have a t&t recipe that's the bomb just the way it is, no matter how easy and simple it may be, leave it alone and let it stand alone, don't mess with it, it's perfect already, accept that.
spend money where it really counts, ie. a Wusthof Trident chef knife. yep, it's a hundred bucks but well worth it.
a Cuisinart food processor, spend the money on one.
a Kitchenaide mixer, just bite the bullet and buy it.
These 3 must haves last a lifetime.
If you know you're going to use a certain spice a lot, buy the best. ie. vanilla beans, vanilla, nutmeg, etc.
if it's something you'll use only occasionally, buy it at the market on sale. ie. corriander, fenugreek, lemon pepper.
Train your pallet. I make food all the time, I TASTE AS I GO, as suggested by someone on here. If it's too sweet, I add the opposite ingred and taste again. If it's too salty, I add something to counter balance. My husband often asks me, "what did you put in this to cause this flavor." I often times can't remember because I've had to adjust so many things, and none of them make sense to a normal cook but to me, if I add a fruit jam, it may work, if I add a bit of chocolate to savory, it works, if I add ortega chilis to something that shouldn't contain that ingred, it matters not if it works.