Here's a potentially silly question that I'm hoping the only answer to is not "well, they are cats..." but here goes anyway. We have two cats who like to crawl all over everything. I'd like to keep them off of the kitchen counters and the birdcage. I've tried various spray on cat repellants that have not worked. Tried tape left sticky side up on off limits surfaces. That one turned into one of the cats new favorite game. Anyone have any effective solutions for this sort of problem?