These are the measuring cups you'll find in my kitchen. When we moved I donated a few of the ones that were doubles or that I rarely used. My gifts to new brides, my own daughters included has been the large pyrex cup...and it comes with a lid.
For measuring dry ingredients, it's best to have a level cup measuring cup to give you accuracy in measurement. Mine are just simple white plastic ones I've had for 39 years. They were a shower gift.
I also use metal ones. I have the others to that set in my larger containers for quick measure of flour, oats, sugar etc.
When measuring liquid it's best to use a clear and marked measuring cup so that you can set it on the counter and get an accurate measure.
My go to all purpose cup is the large 8 cup pyrex. It's dishwasher and microwave safe. This large measuring cup is great for making sauces, and also as a mixing bowl. I have 3 of these large cups, but this particular one is my favourite as it has a rubber ring around the bottom so it grips the counter.
I have a 1 and 2 cup pyrex as well. The 2 cup has a lid that is great to use in the microwave to save all the splatters, and also to cover food and store in refrigerator.
The tall one at the front of the photo is also dishwasher and microwave safe. I use this the most to heat up milk when baking bread.
Then there is my favourite mini measuring cup. If you don't have one of these, I recommend you put it on your list. I make a lot of home made dressings and marinades and often those recipes call for 1/4 cup or less of wet and dry ingredients. The measurements on this cup are in tbsp, ounces, ml, and cups. I can pretty much use this one little cup when measuring out the many little amounts of ingredients to go into those recipes...and only have one thing to wash at the end. Start by measuring your dry ingredients...usually spices and then your liquids, usually oils and vinegars.
January is a great time to do some inventory and cleaning of the kitchen. It's like a gift to yourself to declutter and wipe out all your drawers and cupboards. Wipe out your fridge and clean your oven and microwave. And....don't forget to put out clean kitchen linen.