I think it's impossible to look glam on holiday. I'm just back from one and everyone in the airport looked knackered and scruffy!!
My main issues are:
Hair - never looks good due to pool / humidity / shite hotel hairdryer
Skin - shiny due to factor 50 plus no point in putting make up on top of it; also see above re pool!
Clothes - I see myself wafting in sundresses but I'm too fat and just look all wobbly, hot and bothered. I brought too much away with me and then didn't get dressed up anyway.
Also I'm blue-white and burn very easily so I get stressed about applying suncream to the edges of what I'm wearing so I don't end up burnt round the edges. Maybe I should get a spray tan!!
If anyone does look glam on holiday come and share your tips!!