Sorry, meant to post earlier. Have taken a 7 month old away and am taking a 4 month old away in June - obviously hats, Calpol etc. I always take my own formula, just because I use SMA and have found it difficult to get. I also use the bottle steriliser bags for the microwave
I tend to buy nappies, wipes etc there, but swim nappies are really expensive so bring them. I don't know if you are thinking of using a swimsuit with a built in swim nappy, I have used one once and it was shite (no pun intended), poo leaked out, thank God she wasn't in the water, ended up binning it.
I also bring a rug, one of those light picnic ones from M&S - grass is prickly!! I brought some light toys, stacking cups as well, bath type toys, also if swimming I brought a swimming thingy chair/seat for babies. Muslin cloths are great for wiping, covering prams, shielding from sun etc. Also bring a spare top etc for you for plane incase you get "sicked on".
Oh and don't forget to get an EHIC card for baby as well. Enjoy the holiday, taking babies away on holiday is fab, you just need to do it, the idea of planning for it was worse than the actual reality (most of the time
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