1. Don't Forget About Chairs: It's easy to go straight to a sofa, but sometimes a pair or grouping of comfortable chairs will do the trick and actually be a better use of your space. Consider looking for chairs on your local Craigslist (used) or retailers (new) before you look into sofas.
2. Measure Your Stairs: Don't worry if the neighbors think you are crazy, measure your stairs. Take the smallest space measurements so next time you hit the store you'll know exactly how much room you have to move around.
3. Look For Things That Disassemble: Sure cushions can come off your sofas, but look for feet that can be removed, legs that detach or even pieces that have some bend and flex to them. A little bit of space can go a long way!
4. Forget Sleeper Anything: Sleeper sofas and chairs are plentiful and although their logic is sound, when your space is tight, you really, really don't want to be lugging around that extra weight while you stare at your new sofa and your staircase like a monkey doing a math problem. Keep it simple, keep it light. Forget trundles and extra weight!
5. Take Your Time: Often small spaces require a perfectly scaled piece. It can be hard to live in a space without furniture, so check into alternatives that double up later on. Pallets with soft cushions on them are great, folding chairs or even a twin mattress for the time being until you find exactly what you want.
Do you have any tips to small spaces and moving furniture in and out? Have a horror story? Moving story? Share your thoughts in the comments below!