Something I like to do to "sneak in" creativity is to try to never do a thing in the same way twice in a day (this is of course impossible sometimes), or week or month or so. If I open a door 10 times a day, I try to do it differently every time. First time: right hand, secon time: left hand, third time: behind my back, fourth time: do a dance step through it... you get it :) If people find it weird, just say you're trying to be creative :)
