I do sometimes wonder whether yellow spiders, as in the Devendra Banhart song, actually exist.
Our spider has yellow stripes on its legs, so maybe that counts. He/she seems to have made its home in a corner of the ceiling.
According to the internet, house spiders can live for several years; months without food too. While I’m uncertain as to whether this is a house spider, I no longer need to be concerned about the lack of insects in our kitchen.