As mentioned by another member, I use a paint scraper with replaceable blades...do be very careful and always scrape away from you and the hand that is holding the bottle. I wear heavy rubber gloves (like you'd wear when cleaning the house or washing dishes) and they have saved me from a near cut and help me to keep my grip on the slippery bottles. I soak about 10 bottles at a time in a sink full of very hot water with just a drop or two of clear non-scented biodegradable dish washing soap (no particular brand...check anywhere that sells dish washing liquid). I only soak about 5 or 10 minutes, and begin to scrape while the bottles are still very hot to touch; this is where the heavy rubber gloves are essential, as otherwise the glass would be too hot to hold. With some labels I am able to get the blade under the edge and slowly push and lift the label at the same time and it comes off all in one piece. Some labels float off in the hot water (LOVE those!). Others are a real hassle and come off in pieces with lots of scraping. I truly believe that heating the glass with the very hot water and working with the bottles while still hot is the key, as this softens most adhesives. I've tried dry scraping at room temp and it is very messy and leaves the adhesive behind. After I've gotten the labels off I make a pass with a bottle brush then shake the hot soapy water really well in the bottle and empty it. Once I have a box of about 15 or so I rinse with clear water using a pressurized bottle rinser that screws onto a traditional faucet, drain on a bottle tree, then sanitize all of the bottles just prior to bottling. The only time that I use unscented Oxyclean is when there is visible mold remaining in a bottle after I've done the initial soapy hot water wash and tried to remove it using a bottle brush. If I have enough spare bottles, I forgo the Oxyclean and just toss the moldy bottle in the trash and move on. If using Oxyclean, I rinse several times with hot water and again with the pressure bottle washer to be sure that there is no residue before proceeding to drying and sanitizing. As I'm sure all will agree, label removing/bottle washing is the most labor intensive part of the whole winemaking process, and the least pleasant. I'd probably purchase new bottles if I lived in an area that had a supply store nearby, but right now all of my supplies must be shipped and the nearest supplier charges $30 per box of 12 bottles for shipping...and I am not exaggerating the shipping cost. The hubby says I need to open a supply store here; it's tempting.