I can’t count the number of times i’ve known people to willfully get a nasty sunburn because it was a pain in the ass to put on sunscreen. Although – most products seem to be lower level protection (~ SPF 10) so you’ll still need more for a … Some people prefer to avoid optical brighteners, either due to distrust of unnecessary chemicals or, interestingly, for safety reasons in combat; as a result, there are many detergents that contain no fluorescent brighteners. …
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Summer’s coming. Time for invisible dye. | MetaFilter
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