<human>: Can you succinctly summarize the text in 1-3 sentences?

I've got a 3 year old beagle, and she's a great dog.  But, as a beagle, she does tend to hit 11 on the volume knob.  It used to be more of a constant problem when she was home alone, but we got her a friend (min pin) which helped a ton.  The thing is, she still goes bonkers when we get home, or when she *thinks* we get home.  Top of her lungs howling.  Not really baying, more like she's being fed into a wood chipper.  I was worried for a bit that my neighbors might think I was beating her or something, but nothing has come of it.  However, when I got home today and Bailey started making noise, I heard my new neighbor yell at her.  I'd rather not have it become an issue, especially since this new guy is kind of a sketchy guy.  
A shock collar is out of the question.  Not necessarily because I'm against the idea (I am, though), but that I really doubt it would be effective.  She doesn't learn well from pain as a deterrent.  She does shut up *immediately* if I am the super soaker at her.  Worked for a couple days, then she just started standing farther away and making the noise.  
I've seen the citronella spray collars, but I don't know anyone who's tried one.  Thoughts on them, or other techniques to get her to tone it down?  Or is this pretty much how it's gonna be with a beagle?
<bot>: Beagle is super loud when I get home, or when she *thinks* I get home.  Citronella spray collar, or other ideas?