down in the dumps	depressed
keep sb in the dark	keep sb unawared of sth
not be all one is cracked up to be	to be not as good as people say
catch sb's eye	get sb's attention
right up one's street	within one's range of intrests/ knowledge
take things easy	to relax
off the beaten track	isolated, quiet
come down to earth with a bump	to stop dreaming and start thinking practically
in one's element	very happy/ suited to a situation
the crack of dawn	very early in the morning
get away from it all	to take a break from work and problems
run-of- the- mill	ordinary and unexciting
as brown as a berry	very sunatnned
round- the- clock	all day all night
best bet	most appropriate choice
over the moon	extremely pleased
get into the swing of sth	to become accustomed to sth, start enjoying sth
steer clear of sb/sth	avoid sb/sth
let one's hair down	relax and enjoy oneself
a new lease of life	a return of energy and enthusiasm