Girl, get yoself a ladder. Sometimes your little step stool just won't do the trick. I held out for a while on getting one, assuming Daddio could just bring his over when I needed help with something high, but that got to be a pain in the buttox (as Forrest Gump would say), as I have severe patience issues. Oh, c'mon like you don't??? Ha!
I can't tell you how many times I've used the step stool to reach for something I should have just used a ladder for...I usually got cranky, sweaty, and most times had to redo my project anyway! Mine is a 4 footer and is great - I'm pretty sure I got it for less than 40 bucks - plus it's easy to store at that size...mine lives in the utility closet on the porch.
Just remember this...four feet is still high up. I know this because I may or may not have fallen straight off of it as I was working on a DIY project with my dad...while holding a drill. Luckily, I learned my lesson and my chiropractor was able to get me all fixed up and even prescribed a few massage therapy sessions!!! : )