I would make it illegal to buy a house if the buyer already owns a house which is unoccupied for at least half the year.

Patents expire if six months pass during which the patent holder does not make any products which use that patent. The countdown dies not reset if the patent is sold or traded away.

Companies must publicly post everybody's wages once a year.

All job ads must include wages offered and all benefits. Candidates can try to negotiate higher wages if they wish, but they at least know where the floor is.

Any digital product sold or "licenced" with DRM must be patched to remove the DRM if the verification server goes down (Stop Killing Games is actually making some solid progress on making this into EU law).

Sex workers sharing a home out of which they both work shall not be considered a brothel.

Living off the proceeds of a prostitute will be legal as long as there is no coërcion. The existing law mostly makes it illegal for sex workers to rent homes or support disabled friends and family members, while pimps simply ignore the law.