Decide how much you will spend each week and spend a little less than that, slowly over 3 months you will reduce your expenses. Buy clothes and wash them after 2-3 uses unless you live in super dirty/dusty/warm area. This will prolong clothes life significantly and added advantage is they come back in fashion after a while. I have a shorts which I use still after 10 years.
I stopped washing my t-shirts after a single use (unless visibly dirty, smelly, etc) and the lifespan difference is immense. Also drying clothes in a drying rack instead of in the machine makes a massive difference in durability.
Yes. They often get smelly after one day depending on what you do. Sure blue jeans or an outer jacket can be good for a few casual wears but basically everything else is daily washed so coworkers don't need to suffer the smell