(to) come in h.........
(to) come in handy
get the h........... of something
get the hang of something
(to) gather d............
(to) gather dust
not break the b...........
not break the bank
(to be) old h......
(to be) old hat
to be) all the r.........
to be) all the rage
be in good s..........
be in good shape
the c......... of the c........
the cream of the crop
on the b..........
on the blink/fritz
(to be) m................-of-the-road
(to be) middle-of-the-road
cost an a.... and a l.......
cost an arm and a leg
be on your/its last l.........
be on your/its last legs
(to be) out-of-d...........
(to be) out-of-date
to be u...........-friendly
user-friendly
c...............'s play
child's play