having a limited amount of choice and sizes makes it easier to play around with style and you find stuff you wouldn't otherwise - try everything on and go with mates so it's silly
But not buying any, but you have to only give the employee back some of the clothes so you dont look like a bad person and then you put back the rest of the clothes yourself
deadass put it in another room and shut the door - if anyone really needs you they'll call. set a timer on anything else (i do it on the oven when I'm cleaning) then break up your tasks into smaller ones and write a checklist. being able to tick things off helps me see how much i've already done. then when the timer goes off either celebrate and finish or set another one and go again. the trick is small enough chunks of time that it's not overwhelming but still let's you get stuff done.