I put £5 or £10 in the church collection every time I go to church (approx twice a month) - it goes towards the upkeep of the building, which I am glad to contribute to as it serves a community and they run a weekly lunch club for the poor/ homeless etc,
I give quite a lot every year to Children with Cancer UK. But as my child has cancer I'm not sure that counts as entirely philanthropic.
I sponsor everyone who runs a marathon/ climbs a mountain between £30 and £50, depending on my bank balance on the day, regardless of charity.
I buy Choose Love stuff for refugees.
I give buskers/ people asking for money on the tube £1/ £2 depending on what change is in my purse. Sometimes more. (Sometimes none. Because sometimes I have no change.)
I buy sandwiches and drinks (ie tea) for homeless people.
I occasionally volunteer at our local foodbank.
I don't know what percentage of my income that comes to - I've never worked it out - I just know that I can afford to do it and, because I can afford it, I feel that I should. I wish I could do more.