The cost of ownership is so low on this car at this point, there might not be any savings with renting occasionally, and is less convenient for spontaneous trips.
Agree that Jiffy Lube is not the place for reliable car info. I don't even go to them for oil changes as they upsell everything, and it is annoying.
If you are at all mechanically inclined, you can reduce the cost of your oil/filter changes to under $20 per 5000 miles. It sounds like you drive less than 10k miles/year, so this could be reduced to about $40/year plus about $20 for the tools you would need ($50 if you want the easiest possible setup with a Fumoto valve). Once you know how to change oil, it takes less time to do it yourself than to fuss with the oil change places.
Where is the power steering leaking from? Is it bad hoses or actual failure of the power steering unit? Hoses are easy to replace and the vehicle is at an age where hoses could be marginal. Replacing the power steering pump is more complicated, but with patience and a manual should be doable. YouTube videos are great for this. Looks like you can pick up a cheapo replacement pump for about $40-$50. Given the marginal value of the vehicle, you have a good opportunity to learn something new with marginal risk. Or, if it is a slow leak, then limping it along may be a good option also.