I suggest taking advantage of scan lists. Remember you can put scannable objects in in any order (although putting them in groups and in some priority can be helpful) and then assign them to scan lists however you like.
What I do is put in trunk systems first, conventional objects next, and then talk groups objects. I do it this way because the talk groups I find are the items that change the most often. Lastly I put in search objects or some other things I'm experimenting with.
I have my scan lists organized by importance and region. I left scan list 1 as the default. 2 is my area and Statewide emergency objects such as my State and county EMA. 3 is for local objects only, my police, fire, schools, and public works. 4 is regional including police and fire from neigboring communities. 5 includes more unusal things such as busses, tow truck, and businesses. I then have a list I monitor when I'm in other locations, a list for experimenting, and a skywarn list. This way I can simply press a button to turn a list on or off depending on how I wish to listen.