A trip to Khao Takiap
I'm not going to lie and say it's the most awesome place you can go, but as a relatively no-hassle trip to and from Bangkok over a weekend (I usually try to stay two nights to make the trip worth it), it's hard to beat.
A long weekend in Khao Takiab and Hua Hin
For Bangkokians looking for a few days away at a beach resort but not wishing to mess around with airport departure lounges or long train journeys, the choice generally comes down to either Pattaya or Hua Hin. Both resorts are easily reached in a few hours by car so it's a case of flip a coin, plonk an armful of clothes in the trunk and off you go.