if you are going to patpong be aware its VERY EXPENSIVE and do not use the tuk-tuk they will rob you blind go down the road a bit and get one there
i recomend soi4 on sukhumvit road or soi cowboy
i used it last december several escalators to reconoiter til you find the airport station half an hour to phya thai station then over the bridge to the regular sky train cost 40 baht but a little bit more now
i tried it on my recent trip to bangkok its really cheap 40 baht but its hard work with a case getting off the sky train station lots stairs to encounter but its quicker no traffic jams i enjoyed the challenge