Barriers - nets, clothing. Work with them instead of fighting them. Remove or cover standing water that has collected near your living space. Support habitat for allies such as dragon / damsel flies and bats! Know your mosquito species...
Some interesting tidbits from wikipedia:
"With regard to host location, female mosquitoes hunt their blood host by detecting organic substances such as carbon dioxide (CO2) and 1-octen-3-ol
produced from the host, and through optical recognition. Mosquitoes
prefer some people over others. The preferred victim's sweat simply
smells better than others because of the proportions of the carbon
dioxide, octenol and other compounds that make up body odor. The most powerful semiochemical that triggers the keen sense of smell of Culex quinquefasciatus is nonanal. Another compound identified in human blood that attracts mosquitoes is sulcatone or 6-methyl-5-hepten-2-one, especially for Aedes aegypti mosquitoes with the odor receptor gene Or4.
A large part of the mosquito’s sense of smell, or olfactory system, is
devoted to sniffing out blood sources. Of 72 types of odor receptors on
its antennae, at least 27 are tuned to detect chemicals found in perspiration. In Aedes, the search for a host takes place in two phases. First, the mosquito exhibits a nonspecific searching behavior until the perception of host stimulants, then it follows a targeted approach. Most mosquito species are crepuscular (dawn or dusk) feeders. During the heat of the day, most mosquitoes rest in a cool place and wait for the evenings, although they may still bite if disturbed. Some species, such as the Asian tiger mosquito, are known to fly and feed during daytime."