Methods include waxing, sugaring, epilation devices, lasers, threading, intense pulsed light or electrology. Sugaring is often compared to standard waxing. Sugaring is a food preservation method similar to pickling. Seasonal and weekend activities include cheese making, sheep-shearing, maple sugaring and harvesting. Maple sap is collected annually during New England's "sugaring season". The maple sugaring industry expanded into a commercial enterprise during this period. Marie and Sugar Island, formerly a center of maple sugaring. As in candy making, this gives the finished sugaring wax a non-crystalline, or amorphous, structure. A risk in sugaring is that sugar itself attracts moisture. As a result, it is speculated that honey was the first sugaring agent. If someone has sensitive skin, sugaring can nevertheless result in skin irritation and reaction. PSL makes an extensive use of regular expressions and syntactic sugaring. For practical usage and for syntactical sugaring there are more elements available, but not necessary. Also, sugaring can be used in the production of jam and jelly. The practice is sometimes called "sugaring".