I now live in Croatia but I am very close to the border with Hungary and there are far more expats in Hungary than there are in Croatia. Today I stuck 4 tiles on my bathroom wall...it did not go well. I seemed to get on OK with the old fashioned small tiles but these paving slab size ones the make today are another matter and I struggle to create a flat wall surface with them. I started this tiling about 3 years ago but keep putting it off because I am not satisfied with my workmanship. I wish I could get someone else to do it in exchange for me doing some job they hate, like rewiring. What I am suggesting is some kind of register of members with particular skills that they are willing to offer, perhaps also with an indication of some tasks for which they themselves could use help. I realise that the chance of getting 2 people who need specialist help at the same time AND each having the appropriate skill to help the other is a bit remote so the recipient of specialist help might have to be flexible on what kind of reciprocation he is willing to undertake.