RE: cleaning
Yes definately. Why do you shoot it off every day? I've kept loads in my rifle for the entire 3 week season and it went off just fine. The only time I change it is if I suspect it got contaminated from moisture.
But if you wish to continue changing the load every day, it may be wise to get a CO2 charge remover. That way all you would need to do is a simple swab of the bore to remove any excess powder.