Becky, I cook with much cheaper wine than a $50 bottle. There is an old canard - don't cook with any wine you wouldn't drink as a beverage - but that's unrealistic. In fact, many/most restaurant cooks use inexpensive boxed wine to saute with
When I can afford it, I buy more expensive olive oil, but most of the time I'm using the Kroger brand at home, too. Save the expensive stuff for a dribble of garnish, or for dipping good hot crusty bread into.
The dried herbs thing, I can't stress enough that you should swap them out for fresh whenever possible. But the ridiculous price of "fresh" herbs in those plastic boxes at the grocery make them cost-prohibitive (and they're likely very far removed from fresh). You can get bunches of good fresh herbs from the farmer's market or Paul's Fruit Market or Creation gardens, and even at the grocery you can buy good fresh bunches of flat-leaf italian parsley and cilantro. As far as dried herbs, I find dill and oregano acceptable, but if you've ever used fresh of either one it's a revelation. Never dried parsley or garlic powder/garlic salt. Yuck.
Expand your onion-like ingredient horizons. Buy fresh shallots and fresh leeks in addition to onions.
Explore good butter instead of margarine - once in awhile. When I was in school I read a study that said Kroger unsalted butter was chosen in a blind taste test by chefs more often than more expensive brands. Why? Because it's purchased so often that the store brand is often fresher than the fancier brands. And this extends to all sorts of products. Don't be a slave to brand names. Often the more inexpensive store brand is rated higher in taste tests than the the brand-name competitor. Simple staples like pasta, rice, canned tomatoes and the like are fine in store-brand form.
And speaking of canned tomatoes - choose them in the winter over insipid hydroponic tomatoes. You'll thank me for that one.
Buy good cheese. Sure, it's okay to use an inexpensive shredded mozzarella, but get a good fresh bocconcini of house-made mozzarella for your caprese salad. And explore the myriad of possibilities in good blue and goat cheeses. One of my favorites is "drunken goat", which has a rind washed in red wine.
Buy those peppercorns, Becky! You won't be sorry.
I've got a million more, but that's enough for now...
