I'm 14 too!!
Impossible to get a job under 16 here. Plan is to flip things next summer. Go karts, maybe mini bikes, etc etc. I made $260 this year without even trying.
Seperate topic: I also bought a small inflatable dinghy with a 9.9hp motor for the summer which was fun. If i sold it i could have made $750-$1000, but i literally spent 2-4 hours a day for 3-5 weeks looking on craigslist EVERY SINGLE DAY. I also go my dad to drive an hour and 20 min for the dinghy and an hour and 40 min for the motor with me. So yeah...
Way to stressfull to do again next year, plus i totally stole this dinghy, it's way to nice for me. I probably won't get one as nice again if i tried this next summer. So yeah, plan is to flip things next summer and try and make some money.
I've been letting a neighbors dog out for going on 5 years now, so that was enough to pay for my boat entirely, plus i still have some extra

. Yes, i take very much pride in having a boat titled registered and bought by me in my name (I'm the only one in my family with a marine license- i learned everything i know on my uncles sailboat before i even had a license... I could pull in a 22' sailboat without a license-illegal). The scary thing about boating is that at 14 I could get a license and go out on a 30+foot boat with no experience and noone with me LEGALLY.

So, not trying to brag about my dinghy at all- it's not much of anything, I'm just proud of it since i paid for it with my own money that I worked for, and it's not mommy and daddys.
Hightechredneck: you'll get exactly what I'm saying when you fork over your own hard earned cash for a go kart, even if it only is $75.