If you'd like, juice the lemons and oranges first and save the juice for other uses. Using a spoon, scrape out the fleshy parts, leaving just the outer skin and the white pith.
Add to a quart size jar. Fill with vinegar and cap the jar. Let sit for about 2 weeks, then strain out the peels. Rinse out the canning jar. Add the strained liquid back to the jar & cap. This is the concentrated cleaning solution.
To prepare for use you will need a clean spray bottle (size of your choosing) and a funnel. Fill the spray bottle 3/4 of the way up with water. Using the funnel, pour in the citrus vinegar mix into the spray bottle. Shake to combine. Store this solution in the fridge.