Aahhh... the answer to all your problems is solved. No more expensive fly sprays! No more messy vinegars! Lol, okay, before I really start sounding like a cheap tv ad, here ya go:
Avon Skin So Soft. Anyone ever heard of it for bug repellent? Works great!! Plus, smells quite nice, and don't worry about putting gloves on to avoid that vinegar smell... if ya get this lotion on your hands- it makes then softer!

Hope this helps ya guys!