What if I suddenly forget where I put my things? I remember buying some pens yesterday and putting them in one place, but today I can't remember where I put them.

Calm down and think more about where ... it is best to recall where you went after you got something you forgot, and remember where is the best. If you can't, calculate the possibility and be targeted ... but if you have any quirks when you put things, you can only do a carpet search ... I suggest you put things that will be used in a short time (of course, some smaller items) in a very conspicuous place, just like me. ..