Yes and no
I try to purchase from retailers that ship for free. First prize! That's why I am loyal to certain retailers. I like to accumulate points with them to keep my status which has many added benefits.
I try to return to stores in person when I can - but that can mean getting into the car, driving with I loathe, paying for parking, sitting in traffic, and wasting time when I can simply drop off at the post depot and pay $7 for return shipping which is a fast 3 minute walk up the road. It's cheaper to do that anyway!
I have no problem paying for restocking fees from retailers who I normally have great success with when they charge them (which they don't always do) - like Boden, COS, M&S, Ralph Lauren, Elie Tahari. My return rates with these retailers is very low, which helps!
I will never ever EVER buy anything from 6pm. com again. They wanted to charge me $131 to ship back boots.
I am reluctant to order from retailers whose items are not a slam-dunk and charge $25 to ship both ways - like Me + Em, and TRR. If you do that often you are out hundreds of dollars before you know it!