If you have lots of lovely rhubarb this year why not think of bottling some of it? It would make a great crumble later in the year or if you mix in some oranges you need less sugar - and that is lovely for breakfast on ot's own or with yoghurt.
The reason I am telling you this now is that our lovely Le Parfait screw top jars have come down in price - a lot! This is the perfect size and shape and they are extremely tough. The screw bands and the seals are readily available as well so no problem with getting spares. Unlike the generic Kilner, these jars are made the same as always, they are tough, and practical. They also have one third more glass by weight than their nearest competitor. Take a look, maybe stock up ready for other things later in the year - gooseberries or tomatoes maybe.
Take a look back at one of my blogs on bottling which will give you some help.