I'm using a product called Bug Check this year. Flies are just starting to be a factor now, so only time will tell how effective it is. I'm trying a "feed through" this year since my horse's belly was tortured by no-see-ums last year.
Anyone else just not sure I want to waste the money.....BUT my boys HATE getting sprayed. I think I will crosstie them to do it tomorrow. BTW I LOVE the pink SWAT wowo I put it around their eyes and in their ears on their cuts it works so nice plus its pink and you can see where you put it. I will say I also use the colored sunscreen on my kids!!