So, I can't remember the exact wording of the question; it was either your five favorite songs, or the five songs that take you back to a specific place & time. Voila, here are both:
Five "favorite" songs (i.e., ones that consistently move me in some way, whether it be to dancing or to angst, or somewhere in between):
Daylight - Brave Saint Saturn
Fake Plastic Trees - Radiohead
Groovy Kind of Love - The Hippos
Crush - DMB
Thirty-Three - Smashing Pumpkins
Bolero - Moulin Rouge soundtrack
Five songs that take me back to a specific place/time/event:
Black - Pearl Jam
I Miss You - Blink 182
Mr Brightside - The Killers
Satellite - DMB
Ching Ching Ching - Miss Jade
The Luckiest - Ben Folds
And, of course, the Hokey-Pokey.