i decided to stick with upstand & kitchen and bathroom paint behind the sink.
wrong decision.
i dont want to put in e.g a gloss splasback because in time that would get mouldy too (as they are chipboard with laminate coating of somekind, the chip gets wet and warps overtime)
i will get tiles as they are best in wet areas. eventually. still waiting for DH to do the bathroom cupboard.
i agree that wood doors do (generally) provide ledges for dust to land on, but e.g. under the sink where they will get wet often, a laminated gloss oor will separate at the joins over time (as water seeps in)
not having any full height units may reduce cupboard space, but increases worktop space.
hae as many sockets at worktop level as you can. think - toaster, kettle, radio, laptop - all those kitchen essentials need a socket!
leaving empty floor areas can be handy with small kids because you can change the use more easily - the end of our kitchen used to have a playpen and kitchen table, currently has 2 toddler tables 1 small adult table, and will change as they grow.