I sometimes have to transfer files with spaces in the names, I like using a for loop, but the usual way doesn't work.
for file in `find . -type f|grep .ext$`
To get around this I use a while loop with a read instead. Using the read will read to the end of the line, enclosing within quotes escapes the spaces.
find . -type f|grep .ext$ |while read file
Or if you don't like using more than one line...and enjoy the unreadable (I'm transferring all my avi files to another computer in this example)
find . |grep .avi$ |while read file; do scp "$file" 172.16.1.1:; done