Pictures taken through store windows already have some composition done. To avoid reflections hold the camera flush with the window or use lens skirt.
Graceful front-window neon dancer promoting shoe store
Store window somewhere in Manhattan
Vertical panorama picture using three photos (camera slid up a foot or so on window for each successive picture; the photos were stitched together with Photoshop)
Store animal refuses to stay center-page
Somewhere in Hamilton, Bermuda
Store in New London Connecticut
Zoltar knows all (life-sized currency operated sidewalk machine-man in case with glass windows)
In Hamilton, Bermuda
UK college bookstore-window with glass reflections
In Forest Hills, NY
Things are different in Los Angeles
Famous store-window dogs
Large and medium
small high wheeler
Thoughtful moment
At Chelsea Market awhile back
Do clocks ever lie?
Soho, NY
Could be anywhere
Hamilton, Bermuda
Niagara Falls, Canada amusements area
At a secret location known only to cats and the photographer
Art store window
Chelsea Market awhile back
Back of overcoat positioned close to inside of store-window
Gainsville, FL
Forest Hills, NY
Used long ago
Tiger tamer
Prisoner in storefront at Niagara Falls, Canada
London Museum of Natural History (behind glass enclosures)
Crazy House
Niagara Falls, Canada
Cigar store Indian
Perhaps you need a new suitcase or some mallets (Block Island)
US Army phone of long ago
In front of store window (Moooo!)
Train station waiting-room window photographed from the inside
Life-sized cardboard cutouts behind window
Pie face
Long ago name (now Nabisco)
Interruption for unpaid political announcement
Red light district?
Unusual store-front selling what?
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Reflections desired in this case
Canine bellhop
San Diego cafe with window reflections (posterized to protect diners' identities)