Brake fluid for sure. Its hydroscopic, and absorbs water as it ages...reducing the boiling point significantly. This can lead to a spongy pedel, among other things...especially if you work the brakes a lot.
Power steering fluid is another good one. But instead of going through the hassle of a full flush, just get in the habit of using a turkey baster to suck the fluid out of the reservoir every oil change. Read the manual and find out the total system capacity, then you'll know how much progress you make with each reservoir drain and fill. On my car, I've done this since new...and the fluid is as fresh as day one. Note, once you get the system reasonably clean...it would be fine to only do this procedure every other oil change, or even every 3 changes depending on your interval. I like to at least remove have the system capacity every year and exchange with fresh fluid.
Not sure what type of fluid your Corolla takes, but IIRC Toyota uses ATF (at least they did in the past). Use a synthetic variety if you can that meets the ATF specs required.
At that mileage a fuel filter replacement wouldn't be a bad idea...assuming its a user serviceable item.
If there are any vacuum lines on the car, inspect them. They can age pretty quickly compared to other tubing under the hood, and you'll still find them on modern cars for various actuators and whatnot.
Also while you're under the car looking at the suspension, check out the swaybar endlinks if your car has any, and look at the swaybar bushings themselves.
