You sound just like me. I often wear the same clothes....why not? It's not like the people in the grocery store are going to say, 'hey he's wearing the same clothes as last week.' I don't even wash them if they don't get dirty and if I wear pants and a shirt for a few hours they aren't getting dirty. I figure the more I wash them the faster they wear out. I have plenty of shirts and pants but they are going to have to fall apart before I wear any or the other ones I have.
We confessed that we usually wore the same pair of pants all week - it's not like they got dirty in an office. When we'd get home we'd slip into something more comfortable - so the pants weren't even worn full time. They were hung on a chair after work & all night in front of an open window, ready to go the next day.
(In fact, we'd even alternate the same 2 or 3 shirts through the work week! Shirts 1, 2, and 3 for Mon. - Wed., then wear shirt 1 & 3 again for Thurs. & Friday... or something like that.)
The women were appalled! They said pants worn even just once (for any length of time) should go directly in the wash.