There is an argument that spoiling the ballot is still more effective than not voting at all, so I’d recommend that if there’s definitely no one you want to vote for!I shan't be voting. There's no point in voting for anything other than Tory or Labour with FPTP. Tories are out of the question for me under any circumstances, and so is a Labour Party that has bought into Brexit and formally shared ownership of the mess we're in.
I’ll try and vote for a party, but I guess the more people that spoil the ballot the more argument there is to reform the electoral system.