This recipe is so easy to make. the finished product is great for shower doors an removing lime scale. Since I have been making this I have not purchased any other cleaners. Oh and it smells really fresh too.
The good thing about this cleaner is you don't have to have lots of fruit all at can add to it as you go along.

What you need
A jar with an air tight lid
White vinegar
Citrus fruit

What you do

Peel the fruit an place the skin into the jar.
Cover with vinegar
Put on lid and keep in a dark place for 2 weeks (or longer)
Use as you wish

If you eat oranges every day you can add the peel until the jar is full. Just make sure you cover with vinegar every time  you add to it