We don't really get packages up here, nucs mostly.
I guess my answer would depend on how long you have been keeping bees. If you just started, I would poke my head around every couple of weeks. I know a lot of folks say that you shouldn't disturb them very much but when you first start I think the benefit of the knowledge you will gain by observing outweighs the disturbance caused to the hive.
I agree with that Perry. No better way to learn than by doing, after a while you will learn to read the landing board pretty good. The ground in the front of my hives has old rubber roofing on it, mainly to keep the weeds down, but I can see what they are throwing out the front door also.