I have a pretty successful routine that works for me. I hate bugs, bug bites and don't like to use DEET or other chemicals.
I stay off the beach and wear long pants and long sleeves once the sun sets. Exception -- if its really breezy.
I close all windows once the sun sets -- the no-see-ums get through screens.
I take a hot shower immediately before going to bed, and wash sheets in hot water every day ( I thin they cling to your legs otherwise and camp out in your bed otherwise - yuk!)
I have baby oil or other thick oil sunscreen on during the day at the beach.
Hope this helps!
It is not such a big deal -- just annoying unless you take precautions