You need to set expectations. From my perspective, your managers are giving you more work/responsibilitiy because you do a good job. If you don't say anything about the additionaly workload, and continue to do a good job, they are going to continue to give you more work/responsibility. It's a viscious cycle.

I decided after my last job that my work/life balance was extremely important to me. The best approach that I ever took was to be upfront with my boss about what I would and wouldn't do. After working together for 5 years, he now knows that Tues is sprint night, Weds is TT night, and Thurs is team training night, and that I don't work past 11:30 am on Friday. The flip of that is that I am also flexible enough that I can be available if something really requires my attention.

So, I was open and honest, continue to get my work done (well), and am flexible enough to meet my manager's requirements. In return, he tells me that I have a terrific work/life balance . Have the conversation - it's really worth it.

SheFly