play it by ear	improvise
take a dip	have a swim
get away from it all	escape normal routine
get off the beaten track	go where few people go
travel on a shoestring	not spend much money on a trip
pinch yourself	convince yourself something is real
roll up	arrive
use your time wisely	not waste time
bottom line	zasadnicza kwestia
give it a go	spróbować czegoś
hard going	trudne zadanie
keep an eye on	opiekować się czymś
swing it for	wpłynąć na zmianę decyzji