I've been helping out with coaching a local team this summer and have recently exhausted most of my ideas for coming up with sets. I swim by myself in addition to this, and usually follow a similar structure to what I have planned out for coaching just for simplicity's sake.
As a coach, how do you come up with sets? Or, as a swimmer, how do you make sets for yourself? Also, as a side question are there any big databases for swim sets or swim set generators?