Cleaning your boat cover

So for the last few years I've been intimidated by cleaning my cover as mine goes over the entire boat and tower... I was afraid I wouldn't be able to fit it in any commercial washer not to mention my home washer. What I did was lay it out on the driveway and hit it with the hose and follow up with a very light pressure wash to remove the bird crap etc. I keep my boat on a lift for most of the year and was getting tired of cleaning the whole boat up only to "dust it" with more dust again every time I covered it up. After washing, I installed the cover and put a fan on in my shop to dry it out while it "assumed the shape" even better. No longer worried about much... Not sure if I should do anything else since it's protected for the rest of the year in my shop.