I do spring cleaning all year
LOL
I keep my place tidy and clean. I never designate a certain time of year to do deep cleaning, I just do it when I'm in the mood.. I used to help my grandma do hers in the spring. They were smokers and the curtains, walls, EVERYTHING had to be washed. Additionally, they had a wood burning stove so that added to the mess. Not to mention she had a lot of traffic in her house, people coming in and out, and she cooked a lot! Even with all that, she kept in decently clean, if you could get past the smoking (which makes everything so nasty in a house)
My house is all electric and only 2 non-smoking people so it doesn't get nearly as nasty. Add to that the fact that I'm a clean freak year round, so it pretty much stays that way.
I use my Rainbow, and sometimes my Sirena, Comet cleanser, dish liquid and a bottle of bleach water to clean most everything