Yes, RyanAir has a 1 bag, 15 kg (33lbs) checked baggage limit and a 10kg (22lbs) carry on limit and they mean it. The do weigh the checked baggage carefully and will charge for overweight.
I too used to pack more than I needed, but since my husband bought me a new small carry on bag, that will not hold more than 15 kg I feel liberated not having to drag/roll a heavy bag around. Plus, I have found, I didn't really need all the stuff I usually packed. We just got back from a 2 1/2 week trip in Italy and my carry on and knapsack worked just fine, I had everything I needed. I guess, it's just a matter of learning what you really need on a trip.
Embarrassingly I have actually resorted to stuffing my pockets, pocketbook and (worst of all) my husband has a "safari vest" with tons of pockets that we have crammed deodorant, toiletries and undergarments etc into.
I have even worn more than one shirt, jacket etc walking around like the Michelin Man!
I used to bring anything I could think of but there is hope.... Now I make a mental note of the things I didn't wear or use while I was traveling and then when it comes to packing for the next trip, I systematically leave out the things I didn't use or wear. I still end up at times with things I didn't need, but I am getting better at it, and having a smaller bag really helps... Good luck!
I've used Wizz Air and find them to be a good low cost carrier in Europe. Search for Wizzair on the Community Main Page for a thread.
When using low cost carriers in Europe, ALWAYS check their baggage rules as each airline is different! I try to take only cabin baggage whenever I travel to Europe.
Also, I saw someone mention whichbudget.com which is a useful site. Not sure if anyone else hasmentionedskyscanner.net on these boards, but as regular traveller based in London I find it by far the best web tool to find cheap fares in Europe. Check out the "Map" function - has to be seen to be believed!
We have found Easyjet to be far and away the most dependable & "user friendly" of the European discount airlines. We recently flew Easyjet round trip from Paris to Milan and they were on time both times. In addition, the Easyjet employees were courteous and friendly.
In contrast, when we flew Ryanair from Standsted to Shannon, they closed the flight at precisely 40 minutes to scheduled departure with people on line, their ground staff was un helpful in the extreme and the charges for anything other than a seat bordering on larceny.
We also would not recommend Volare. Our one attempt to use them resulted in a cancelled flight.