1) A couple of UK > EU Power adapters
http://amzn.to/1FRlh4d
2) A decent 4 gang power adapter / extension lead
http://amzn.to/1B9ryTF
It’s amazing how useful one of these can be
or if money is tight > http://amzn.to/1FRmAQt
3) A multiple USB charger >
http://amzn.to/2aSfZtB
4) A USB portable charger (ideal for the plane/journey/beach etc) >
http://amzn.to/1FRm1Gn
5) A wireless speaker > http://amzn.to/18T2atQ or
http://amzn.to/1B9re7v or one of these speakers
6) A decent set of noise cancelling headphones >
http://10ws.co/2aU3YHf or http://amzn.to/1NWAF3v
7) Decent cabin bag > http://amzn.to/1rSL5Jp
8) A microfibre towel >
http://amzn.to/1FvnyDC (also great for the gym)
– Very useful for wrapping gadgets in when at the beach
9) A decent waterproof camera
http://amzn.to/2aShqIm or http://10ws.co/2aSh5p3
10) The obligatory Kindle >
http://amzn.to/2aU4mFE