Is it bad or helpful to do some stretches for the affected muscles, grab one's dumbbells from the corner, do a set of curls, squats, etc., set them down, stretch the affected muscles again, and go back to one's business when one has a few spare moments, such as right before leaving for work or some other time when one is not going to go through one's whole routine? Is it better just to have a planned, set schedule for when one will weight train and not touch one's weights outside of those times, or, perhaps given some ground rules to prevent overtraining or injury, can it be helpful to do a quick set here and there during one's day, especially if one has a busy schedule?