Tip #01: Never save your position unless you are sure the location you are standing on is safe to save on, or on a place you want to save at.
Tip #02: Never do jumps with your primary weapon, like one that is heavy, unless you are trying to do the map with that gun.
Tip #03: Never intentionally lay banana skins on the next jump hoping a jumper behind you will slip on it and fall.
Tip #04: Always make sure that you have a close saved position before you attempt a jump that looks seemingly difficult.
Tip #05: If time remaining on the current map is low, just go spectator and watch the other jumpers Ph4IL.
Tip #06: Save before a large group of many jumps you cannot save on, e.g. a series of ladderjumps.
Tip #07: Never lay grenades on the platforms hoping your fellow jumpers will trip on them and fall off.
Tip #08: When doing corner turns, aim with your weapon to move slower around the corner.
Tip #09: Never throw a grenade directly at another jumper unless he is pissing you off.
Tip #10: When you come across a panzer, make sure that you claim it first. Panzers are like gold in jumping.
Tip #11: Never stand on another player's save positions to intentionally block them from loading.
Tip #12: Never stand on another player's save positions by accident to block them from loading.
Tip #13: Always be sure to throw your grenades directly at the ground, not at an angle.
Tip #14: If you have to abuse the save function, do it. Never be afraid to.
Tip #15: When attempting a jump map with no saves, take it slow and concentrate on each jump you know is difficult.
Tip #16: Hitting the load key very fast doesn't make you load faster, it just adds damage to your keyboard.
Tip #17: Always make sure that you know a map very well before attempting it with no saves.
Tip #18: Never attempt no saves and no deaths on a map you know is impossible, e.g. jm_maniacmansion.
Tip #19: If you just can't make a jump at all with strafing, then use a grenade. (Just don't forget, nadejumps = noobjumps.

Tip #20: If another jumper calls you Ub3R-n00B, just tell him to type /cp in the console, if he calls you this, he is probably stupid enough to fall for it.
Tip #21: Never think you are an Ub3R-n00B because you can't make a jump.
Tip #22: Never get mad and throw your keyboard out of your window because it stops working.
Tip #23: If a certain strafing method isn't working for you, try another. Instead of strafing left, try strafing right.
Tip #24: It is best to start out with Ub3R-n00B maps before attempting a more 1337+S4Uc3 map, an example would be easyrun. (Just kidding, no really. xD)
Tip #25: Jumping can sometimes be annoying, deal with it the best you can and keep trying.