When I go in there I just tell them "I'm looking around. I have some ideas in my head and its too hard for me to explain what I am trying to do"
That is very generous of you. Much better to say that than to respond to "Can I help you?" with "I doubt it".
I have to say I did get a bit steamed when the guy started trying to tell me I probably wouldn't be able to find parts for old technology like C-band. It just seems to me counter to good business sense to make assumptions about things you do not know with a customer who obviously knows more about what they are looking for than you do..
Yeah I remember the old RS. Watching my Dad with soldering iron on the kitchen table assembling his Archer AM/FM portable radio back in the late 60s. Now THAT was the real Radio Shack.!