Whilst I dont particularly like others looking after my animals - I have to go on holiday, or else I would fall to pieces! Everyone needs to get away sometime or other. We usually only go away when we have our annual holiday (1 week a year), though we would love to plan a bigger trip for in the next few years.
I have a couple of options - one is to get a well trusted family member over. I have done this for the past 3 or so years and they house sit and look after the animals. I type up a list of instructions for each kind of animal, and leave details for the vet. I also ring up to check in on everyone once a day which gives us the chance to discuss any weird behaviours the petsitter might have observed etc. I also provide a list of photographs of each animal and their name, so that if they have to go to the vet - they know the name and the vet can then look at previous records for that animal. I pre-prepare all meals and label them, which makes the job easier for the petsitter. I also ensure that there is plenty of supplies to last them the week (hay, litter, pellets, veggies etc).
Alternatively, another albeit expensive option is to have them board. The only place I know of is at the vets - and we calculated that it would cost us upwards of $500 to have the animals in decent size cages for the week. Very costly, but then they are at the vets and get looked over daily so if anything goes wrong they can be treated immediately.