A bit off topic with VORs though, when planning I like to look at all the airports that will be along my route, I write the tower frequency on my planning sheet, along with the the App/Dep controler. For example going from Trenton to the southwest side of Philly's Bravo, you some times might be handed off to several different controllers. Also when you get handed off, if you don't have the freq written down, write it down. All this helps if you're not sure who to talk to. The tower freqs for apts along your route help out if you have a problem you can look at your plan instead of having to fumble through an AFD or the sectional.
Good Luck, I'm still doing my XCs for the commercial. They're enjoyable.