be careful with deet. it's nasty stuff. try not to spray it on your skin.
i buy ben's 100 which is 100% deet, which i mixed down with avon's to about 85% sss, 15% deet. and even at that ratio it causes my lips to become numb when i spray it on myself in buggy conditions.
on one of my worst days hiking in tropical yucatan, i was beset upon by mosquitos that were so big that they were seen to carry off small children into the sunset.
deet was the only thing that worked, but i've wondered what it's done to my body.
not to mention canoe trips in the jersey pine barrons where you had to wear a beekeeers hat the whole time or get eaten alive.