My daughters just bought a new Forrester with black carpets that show every grain of sand, so I bought her a portable Vacuum cleaner.
Then an enhancement idea, cut the head off an old kite pump and screw it to the back. It pumps her little kite in three minutes, maybe 5 for a 12m. It need a few pumps by hand at the end to build the pressure.
You can buy the unit for less than $100, then an hours work and a bit of glue and tape. By streching your lines whilst you pump you can save 3 minutes every time you go out. How many hours extra sailing by the end of the season?