It is a sad fact that the tax burden in most countries is very high and that the money you give to the government is not very wisely spent. So make sure to optimize your finances within the legal frame, they won't come and tell you that you could have done this or that in order to save some tax money.

Your subconscious registers all irregularities, so be honest towards the tax authorities, you will sleep better at night. It's like with the weather: if you don't like it, you always have the option to move somewhere else.