Do not fall for DIY fixes when it comes to your A/C. When you DIY, you run a serious threat to your A/C system. If you properly fill your A/C with refrigerant and the right A/C Oil your compressor will have a good chance of lasting a long time.
*** I actually did this and it completely worked! I did water detergent (ours is hypoallergenic so not scented so I added fabric softener) DIY auto detailing - includes recipe for upholstery and carpet cleaner (using scented laundry detergent)