for 2 years ive used tape to hang up my posters and had basically no issues but recently everything just keep falling again and again. I clean the wall, change the tape, add MORE tape and nothing will work?!?! I don’t like to use sticky putty bc I hate having to fix the posters after awhile but idk why this is just recently happening? I guess i’ve never put up posters during the summer before so maybe it’s the difference humidity and temperature of the summer? bc my older posters are fine but the newer ones just refuse to stay up! dehumidifiers are expensive tho so I might just have to set them aside till it gets colder and try again maybe? does anyone have any advice on this? #diy source