Car Accessories Keep Dying While Driving? And it's not the alternator?

I've got a 2003 Honda Element, I was driving it a few weeks ago, and the AC, Radio and interior lights began to shut off while I was driving. I immediately thought it was the alternator. However, I had recently had it worked on, so I checked the cables to make sure that they were secure on the battery. The negative cable was lose, so I tightened it, then jumped it and drove it. I drover it for about 20 minutes then checked the Voltage in the battery to see if the alternator was going out. It read around 14 V while the car was on even with the AC, headlights etc. Which is that of a healthy alternator. Similarly, I got good readings on the battery as well(it's brand new). Assuming it was the bad connection, I drove it for about a week and half before the same problem came up. Things started to die while I was driving. I didn't have time to jump it again and try and address the problem for about a day, so I let it sit. When I went out to jump it today, it started fine without a jump. I drove it on the highway for about 25 minutes without any problems.
I'm a college student and my problem here is that I need to drive the car home(about 120 miles) to have it properly inspected this weekend, however I'm worried that this same problem will occur.
Any thoughts on what the issue may be?

White smoke coming out of the car after over doing it with motor oil?

So i'm 18 years old. My mom gave me her old car, a honda 2003. She told me to be checking the oil and water every week. Recently i asked my boyfriend to go buy more oil just in case we need it. He came back with a big gallon of oil (5 quarts) and decided to put the whole thing in. (The car didn't need water at the moment ) . Yes, he put the whole thing in. (My boyfriend knows very little of cars) . As we were driving we noticed white smoke coming out, a lot! When i pressed on the gas it barely advanced but just a bunch of white smoke came out. We had to drive back home. I have very little money ( literally no money ) . What can i do? How can i fix this? What's wrong with my car please help and answer.

Is it normal for my 2015 Vauxhall Corsa Sting to be burning so much oil?

So in January this year I bought a brand new, new model vauxhall corsa sting! I used to be a plumber and I was driving from Belfast to Lurgan everyday building up the miles in the car and now it has 12,500 miles (roughly). Yesterday my 'CHANGE OIL' Warning light came on the dash so i dipped it and its at the very bottom. I'm going to phone Charles Hurst tomorrow and tell them, but before that I want to know if anyone else knows why. I do know some things about cars and know this isn't right! My sisters honda jazz hasn't had the oil changed in 3 years and its still up at the top and it has done roughly the same miles maybe more because i drove it too!

Is it dumb to buy a car with 175k miles on it. It's a 2002 Toyota Camry?

I'm a high school student trying buy my own car. Vesely I do not have a lot of money so my budget is around $5000 or maybe 5500 at the Max. This is a 2002 Toyota Camry XLE with 175,000 miles on it. All I need is a simple reliable car that can get me around for about three years which is why am looking at Toyotas or Hondas. I know I Toyota Camry can probably last me for three years on 170 5000 miles but I'm still not sure and do not want to waste my money I also don't want people thinking I'm dumb or buy a car with that many miles on it my gut tells me I shouldn't buy it but what do you guys think

Feedback for honda mechanic employment?

Not knowing that much about cars, I love working on them and is why I'm curious in working for a car dealership. I wouldn t mind being the oil change guy as long ad I work on vehicles. I was wondering if it is possible to get a job working only three days a week at a Honda dealership. I'm limiting myself to only three days because I'm in school still. I also was wondering if they would work with me on my school schedule also? I'm preferably wanting legit answers from former dealership employees.