in my marriage, we are allowed to "kidnap" the other one. ya know, "shut up & get in the car dear" kinda thing. the receiving party knows to just go with the flow. we've done things like attending a ren faire, playing tourist in vegas, viewing a private classic car collection, a sunset dinner cruise down the snake river in idaho. simple but memory making gifts.
hubby also likes treasure hunts - leaving clues around the house to find his "present". one year i left him all kinds of clues around the house, ultimately he would've found me at a local semi fancy hotel, but it backfired on me. i made the clues waaaay too hard for him, so he never left the house