here's a clue: no matter how peeved you become at not being able to vacuum the entire expanse of the very tall cat condo, when you are in a wheelchair because of the basic unreliability of your legs, and you have been instructed to lift nothing above 5 pounds?
do not gently guide the condo onto the floor so as to put its many levels within reach of suction.
more importantly, when time for the condo to rise back skyward, do not stand up, do not attempt to resurrect the 75+ pound monument to silliness, especially in a posture that approximates a lopsided clean and jerk virgil grissom elementary school weightlifting team tryout.
okay, "approximates," most precisely, in the highly technical sub-specialty of clean-and-jerk screaming. you betcha, screaming like a freaking bean-sidhe was de rigueur in the virgil grissom elementary school training camp. probably still is!
(oh yeah! be sure not to travel four or five steps away from the waiting chair! it would be much better, even best, to be able to sit down, however abruptly or involuntarily, and land somewhere appropriate.
you know, as opposed to the floor.)