What services can I offer for extra money?

Please no jokes. Im looking to make extra money, and maybe in the future start my own business.

People charge big money for little stuff, stuff you can do yourself.

Typing/Computer work.

A know a lady who all she does is type what people bring her that is hand written, and she gets good money!!

Some older people dont know how to type, or even turn on a computer and they would pay to have their reports and such typed out!!

I started my own lawn mowing business when i was a freshman in high school charging about $30 a lawn. The lawns only took me a hour to do so when i was working i was making 30/hour. I now have 32 regular customers and hired my friend as a full time employee. I got to thinking of other things that people don't like to do though while mowing lawns and this is what I came up with.

Window washing. No one likes to wash the windows of their house especially the outside. All you need is a ladder and some window cleaning supplies and your set.

Also, car detailing. By this I mean washing cars inside and out in detail. shampooing the carpet, armor all the interior, etc.. You can make a lot of money at this one.

The best part of all of these including my business is that they all can be under the radar and tax free if you work on a cash basis. :)

Cleaning houses is always a great way to make extra cash I used to charge 10 to 15 an hour for it. and I know some people who charge more! Babysitting, pet sitting, pet walking, tutoring, domestic assistant(cooking cleaning erands), I used to work private parties too (nothing dirty) just serving drinks, greeting, putting out food, picking up dishes ect.. good luck!